Convert Files Online Free and Fast

PDF, Word, Excel, Images - Over 40 free tools

Convert your files in seconds without installing software. 100% free, secure and unlimited. Over 1 million users trust our file conversion tools every month.

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File Conversion Tools

All the tools you need to work with your digital documents

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CSV to Excel

Convert CSV files to Excel format maintaining data structure

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Excel to PDF

Convert Excel files to PDF format with tables and intact formatting

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Word to PDF

Transform Word documents into PDF maintaining original formatting

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Merge PDFs

Combine multiple PDFs into one in your preferred order

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Split PDF

Separate a PDF into individual pages or specific ranges

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Compress PDF

Reduce PDF file size without significant quality loss

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Rotate PDF

Rotate PDF pages 90°, 180° or 270° easily

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Protect PDF

Add security password to your PDFs to protect confidential documents

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Image to PDF

Convert JPG, PNG or WebP images to PDF format

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Compress Image

Reduce image size without visible quality loss

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Resize Image

Change image size to custom dimensions

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JPG ↔ PNG

Convert between JPG and PNG formats according to your needs

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Delete PDF Pages

Delete specific pages from your PDF by selecting them individually

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Extract PDF Pages

Extract specific pages from your PDF and create a new document

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Rotate Image

Rotate your image 90°, 180° or 270° with real-time preview

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Crop Image

Crop and adjust image size with precise selection

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Convert to WebP

Convert images to modern WebP format to optimize web loading

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Word Counter

Count words, characters, lines and paragraphs in your text with detailed statistics

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Convert Uppercase/Lowercase

Convert text to uppercase, lowercase, capitalize or title case instantly

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Clean Text

Remove multiple spaces, line breaks and format your text automatically

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Sort Lines

Sort text lines alphabetically in ascending or descending order

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Lorem Ipsum Generator

Generate Lorem Ipsum filler text for your web designs and mockups

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Password Generator

Generate secure and random passwords with customizable options and strength analysis

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QR Code Generator

Create custom QR codes for URL, WhatsApp, WiFi, vCard and over 12 different types

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UUID Generator

Generate and convert UUIDs v1, v4, v5 and MySQL HEX format for your applications

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Temperature Converter

Convert between Celsius, Fahrenheit and Kelvin

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Length Converter

Convert between meters, kilometers, miles, feet, and more

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Weight Converter

Convert between kilograms, pounds, ounces, and more

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Volume Converter

Convert between liters, gallons, milliliters, and more

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Speed Converter

Convert between km/h, mph, m/s, and knots

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Area Converter

Convert between square meters, hectares, acres, and more

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Pressure Converter

Convert between bar, PSI, pascals, and atmospheres

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Energy Converter

Convert between joules, calories, kWh, and BTU

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Digital Storage Converter

Convert between bytes, KB, MB, GB, and TB

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Time Converter

Convert between seconds, minutes, hours, days, and more

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Angle Converter

Convert between degrees, radians, and gradians

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Power Converter

Convert between watts, kilowatts, and horsepower

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Frequency Converter

Convert between hertz, kilohertz, megahertz, and gigahertz

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Fuel Consumption Converter

Convert between L/100km, km/L, and mpg

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Color Converter

Convert between HEX, RGB, HSL, and CMYK

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Number Base Converter

Convert between decimal, binary, hexadecimal, and octal

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Timestamp Converter

Convert between Unix timestamp and readable date

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Why Choose ConvertFilesOnline?

The best file conversion platform with over 40 free tools

✓

100% Free

No hidden costs, no registration, no limits. Convert all the files you need without paying a cent. All our tools are completely free forever.

⚡

Super Fast

Conversion in seconds thanks to our optimized processing. Handles files up to 20MB with state-of-the-art conversion technology. No unnecessary waiting.

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100% Secure

End-to-end SSL encryption protection. Your files are automatically deleted after 1 hour. We never store or share your information. Your privacy is our priority.

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No Installation

No need to download or install any software. Everything works directly in your web browser, compatible with Windows, Mac, Linux, Android and iOS.

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Multiple Formats

We support PDF, Word, Excel, CSV, JPG, PNG, WebP and over 20 different formats. All the most popular conversions in one place.

∞

No Limits

Convert as many files as you need, 24 hours a day, 7 days a week. There are no daily or monthly restrictions on any of our tools.

How Does Our File Converter Work?

Convert your files in 3 simple steps

1

1. Select Your File

Click the upload button or drag and drop your file directly into the upload area. We support files up to 20MB to ensure fast and efficient conversions.

2

2. Wait for Conversion

Our system will process your file automatically. Conversion time varies depending on file size, but generally takes only a few seconds. You'll see a real-time progress bar.

3

3. Download the Result

Once conversion is complete, your file will download automatically. You can also click the download button if your browser requires it. Your original file remains intact.

The entire process occurs securely and privately. We use servers with SSL encryption and delete all files after 1 hour to ensure your privacy.

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Complete Guide: How to Convert Files Online for Free

In today's digital age, file conversion has become a daily necessity for both professionals and everyday users. Whether you need to convert a Word document to PDF for emailing, transform CSV files to Excel for data analysis, or compress images to optimize your website, having reliable and free conversion tools is essential. In this comprehensive guide, we explain everything you need to know about online file conversion.

Convert CSV to Excel Online Free

CSV (Comma-Separated Values) files are widely used for exporting and importing data between different applications. However, working with these files can be complicated without proper formatting. Our CSV to Excel conversion tool instantly transforms your CSV files into fully formatted Excel spreadsheets (.xlsx) ready to use.

By converting CSV to Excel, you gain multiple advantages: improved visual formatting with well-defined cells, ability to apply Excel formulas and functions, better data visualization with charts, and full compatibility with Microsoft Excel, Google Sheets and LibreOffice Calc. Our tool maintains data integrity, preserving special characters and original number formatting.

This conversion is ideal for data analysts working with database exports, accountants processing financial reports, marketers analyzing campaign data, and researchers working with scientific datasets. The process is instant: simply upload your CSV file and download your formatted Excel in seconds.

Convert Word to PDF Free and Easy

Converting Word documents to PDF is one of the most common operations in professional and academic settings. PDF files offer significant advantages: they maintain original formatting regardless of device or operating system, cannot be easily edited (ideal for final documents), take up less space, and are universally accepted for official submissions.

Our Word to PDF conversion tool perfectly preserves all document elements: text formatting, images, tables, headers, footers, numbering, and custom styles. We support both .doc (Word 97-2003) and .docx (Word 2007 and later) files. Conversion maintains image and graphic quality without resolution loss.

Perfect for sending resumes and cover letters that must look the same on any computer, sharing professional reports without risk of alteration, sending contracts and legal documents with fixed format, creating manuals and instructions with consistent design, and distributing documents that don't require further editing. The complete process takes less than 10 seconds for standard documents.

Merge PDFs Online Without Programs: Combine Multiple Documents

Combining multiple PDF files into a single document is a frequent need in professional environments. Whether you need to merge book chapters, consolidate monthly invoices, combine scanned document pages, or create a professional portfolio, our PDF merging tool does the job in seconds without installing additional software.

You can upload up to 10 PDF files simultaneously and organize them in your preferred order before combining. The tool maintains original quality of each PDF, preserves bookmarks and internal links when possible, respects page orientation, and generates a single optimized PDF file. Maximum size of each individual file is 20MB.

This tool is essential for students consolidating study notes and materials from different sources, legal professionals unifying contracts and annexes into complete files, accountants preparing tax documentation packages with invoices and receipts, designers presenting portfolios with multiple projects, and any user needing to organize scattered documentation into a single manageable file. The process is visual and intuitive: drag files, arrange them as you prefer, and click merge.

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Compress PDF to Reduce Size Without Losing Quality

PDF files can become very heavy, especially when containing high-resolution images, complex graphics, or multiple pages. A large PDF can be difficult to send by email, slow to load on the web, and consume unnecessary storage space. Our PDF compression tool reduces file size by up to 70% without significant visible quality loss.

We use intelligent compression algorithms that optimize images, remove unnecessary metadata, and reduce redundancies without affecting document readability. The result is a lighter file that loads faster, sends more easily by email, takes up less device space, and meets website upload limits. Visual quality remains virtually intact for screen reading and standard printing.

Ideal for preparing documents that must be sent by email with attachment size limits (typically 10-25MB), uploading files to educational or corporate platforms with restrictions, optimizing PDFs for websites improving loading speed, freeing up storage space on your device or cloud, and sharing extensive documents via WhatsApp or other messaging apps. Especially useful for PDFs with many images like presentations, product catalogs, digital photo albums, and high-resolution scanned documents.

Image Conversion and Optimization

Working with digital images requires versatile tools for different needs: conversion between formats (JPG, PNG, WebP), compression to reduce size, resizing to adjust dimensions, and transformations like rotation and cropping. Our suite of image tools covers all these needs in one place, without installations or prior technical knowledge.

We support the most popular image formats: JPG/JPEG (ideal for photographs with lossy compression), PNG (perfect for images with transparency and graphics), and WebP (modern format offering better compression than JPG and PNG). Each format has its advantages: JPG is the universal standard for photos, PNG maintains perfect quality and supports transparency, and WebP is ideal for modern web with excellent compression/quality ratio.

Image compression is crucial for optimizing websites and reducing data consumption. A well-compressed image loads faster, improves user experience, reduces bandwidth costs, and improves SEO (Google prioritizes fast sites). Our intelligent compression tool can reduce your image size by 40-80% while maintaining acceptable visual quality.

Resizing images is necessary for multiple purposes: adjusting photos for social media (each platform has optimal dimensions), preparing images for printing in specific sizes, reducing professional camera photo resolution for online sharing, and creating thumbnails for web galleries. We support resizing by exact pixels, percentage, and maintaining original proportions to avoid distortion.

These tools are essential for web designers optimizing site assets, photographers preparing online portfolios, community managers creating content for social media, e-commerce managers optimizing product photos, bloggers reducing image weight in articles, and everyday users sharing family photos without consuming excessive data.

Text Processing Tools

Working with text is fundamental in the digital age. Whether you're writing content for a blog, preparing professional documents, cleaning text data, or generating test content for design, our text tools save you valuable time by automating repetitive and tedious tasks.

The word counter is essential for writers, students and professionals working with length limits. It provides detailed statistics: total words, characters with and without spaces, number of lines, paragraphs, and sentences. Useful for verifying academic essay requirements, optimizing SEO meta descriptions (155-160 characters), adjusting content to social media limits, and estimating article reading time.

Converting between uppercase and lowercase is more common than it seems. Useful for correcting text copied with incorrect format, standardizing titles and headers, preparing data for databases with specific requirements, and reformatting content for different editorial styles. Supports: ALL CAPS, all lowercase, Capitalize Each Word (title format), and Capitalize first letter of sentences.

Cleaning text removes unnecessary multiple spaces, excessive line breaks, and invisible characters that can cause problems. Ideal for text copied from PDFs (which often includes strange line breaks), content scraped from websites, database data with inconsistent formatting, and preparing text to import into other applications. Improves readability and reduces formatting errors.

These tools are indispensable for content writers meeting word limits, students preparing essays with specific requirements, SEO specialists optimizing meta tags and content, developers cleaning text data for processing, and anyone who frequently works with digital text and needs to transform it quickly.

Utility Tools and Generators

Beyond file conversion, we offer specialized utility tools that are indispensable for developers, designers, marketers and technical professionals. These tools generate unique resources like QR codes, secure passwords, UUID identifiers, and diverse unit conversions.

QR codes have become ubiquitous in marketing, digital payments, and quickly sharing information. Our generator creates custom QR codes for 12 different types: web links, plain text, emails with subject, phone calls, WhatsApp messages, WiFi configuration, vCard contact cards, GPS locations, SMS messages, Instagram/Facebook/YouTube profiles, and more. Configure size (200-800px) and error correction level (7-30%) according to your needs.

Online security starts with strong passwords. Our tool generates cryptographically secure passwords with customizable length (8-128 characters) and includes real-time strength analysis. Configure inclusion of uppercase, lowercase, numbers, special symbols, and exclusion of ambiguous characters like O/0 or l/1/I. Perfect for creating unique passwords for each account without needing to remember them (use a password manager).

UUIDs (Universally Unique Identifiers) are fundamental in software development to uniquely identify resources. We support UUID v1 (timestamp and MAC based), v4 (random, most common), and v5 (namespace and name based). Additionally, we offer bidirectional conversion between standard UUID format (with hyphens) and MySQL HEX format (32 hexadecimal characters without hyphens), essential for working with MySQL databases that store UUIDs as BINARY(16).

We offer over 15 specialized unit converters: temperature (Celsius/Fahrenheit/Kelvin), length (meters/feet/miles), weight (kg/pounds/ounces), volume (liters/gallons), speed (km/h/mph), area (m²/hectares/acres), pressure (bar/PSI), energy (joules/calories/kWh), digital storage (bytes/KB/MB/GB/TB), time, angles, power, frequency, fuel consumption, colors (HEX/RGB/HSL/CMYK), number bases (decimal/binary/hexadecimal/octal), and Unix timestamp. All conversions are instant with mathematical precision.

These tools are essential for developers generating UUIDs for databases and APIs, designers creating QR codes for marketing campaigns, systems administrators generating secure passwords for users, engineers performing technical unit conversions, and digital professionals who need specialized tools without installing software.

Use Cases by Industry

How different professionals use our tools

🎓

Education and Academia

Students convert Word notes to PDF for homework submission, compress extensive PDFs of digital books to share with classmates, merge multiple PDF files of study materials into consolidated documents, count words in essays to meet length requirements, and generate QR codes to share educational resources.

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Business and Enterprises

Corporate professionals convert Excel reports to PDF for executive presentations, protect confidential documents with passwords, compress presentations with many images to send by email, extract specific pages from contracts for review, and generate UUIDs for business management systems.

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Legal and Judiciary

Lawyers and notaries merge complete files of multiple scanned PDFs, protect confidential legal documents with encryption, extract specific pages from extensive contracts, convert Word documents with strict legal format to PDF preserving numbering and references, and compress case files for efficient storage.

🎨

Design and Creativity

Graphic and web designers convert images between JPG/PNG according to transparency needs, compress images to optimize website loading without significant visual loss, resize assets to specific dimensions for different platforms, generate custom QR codes for marketing campaigns, and convert colors between HEX/RGB/CMYK systems.

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Accounting and Finance

Accountants convert CSV reports from banking systems to Excel for analysis, merge monthly invoices into consolidated PDFs for client presentation, compress tax backup files for long-term storage, protect tax returns with password before sending, and extract specific pages from extensive account statements.

🏠

Real Estate

Real estate agents generate QR codes for property ads linking to virtual tours, compress high-resolution property photos for digital brochures, merge property documentation (deeds, appraisals, certificates) into complete packages, convert Word/Excel floor plans to professional PDF, and create vCard contact cards for networking.

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Security and Privacy of Your Files

How we protect your information

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SSL/TLS Encryption

All files you upload are transmitted via HTTPS connection with banking-grade SSL/TLS 1.3 encryption. This means data travels encrypted between your browser and our servers, preventing third parties from intercepting or accessing content during transmission. Verify the lock in your browser's address bar.

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Automatic Deletion

We implement strict automatic deletion policies. All files (original and converted) are permanently deleted from our servers after maximum 1 hour. We don't maintain backups, backup copies, or file logs. Once deleted, there's no way to recover them even for us. This process is completely automated and requires no action from you.

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No Content Logging

We don't log, index, or analyze the content of your files. Our systems only process technical conversion without opening, reading, or storing content. We don't use your files to train artificial intelligence models, data analysis, or any other purpose. Processing is completely automated without human intervention.

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Clear Privacy Policy

We comply with international privacy regulations including GDPR (Europe) and CCPA (California). We don't sell, share, or transfer user information to third parties. We don't create user profiles or track your activity between sessions. You can use our tools with complete peace of mind about the confidentiality of your information.

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Infrastructure Security

Our servers are protected with state-of-the-art firewalls, intrusion detection systems (IDS), automatic security updates, and 24/7 monitoring. We use infrastructure from certified cloud providers (AWS/Google Cloud) with secure and redundant data centers. All infrastructure complies with ISO 27001 security standards.

Benefits of Using Online Conversion Tools

Advantages over traditional desktop software

1

Universal Accessibility

Access all tools from any computer with internet connection without needing installations. Perfect for working on multiple devices, public computers, or when traveling.

2

Always Updated

You automatically use the latest version of each tool without needing to download updates or patches. We include performance improvements, new features, and bug fixes transparently.

3

Total Cross-Platform

Works equally well on Windows, Mac, Linux, ChromeOS, Android, iOS and any operating system with modern web browser. No version fragmentation or cross-platform incompatibilities.

4

No Storage Consumption

You don't take up valuable hard drive space with heavy software installations. Especially useful on devices with limited storage like budget tablets or Chromebooks.

5

Ease of Use

Intuitive interfaces designed for users of all technical levels. You don't need to read extensive manuals or take courses to perform simple conversions. Everything is self-explanatory and guided.

6

Completely Free

Save hundreds of dollars on commercial software licenses. Professional applications like Adobe Acrobat Pro (PDF), Microsoft Office (Word/Excel), or image editing software can cost $10-50 monthly or $200-600 in perpetual licenses. Our tools offer essential functionalities at no cost.

Tips and Best Practices

Optimize your file conversions

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Optimize File Size Before Converting

If your file exceeds the 20MB limit, consider compressing it first. For PDFs with many images, use our PDF compression tool. For Word documents with high-resolution photos, reduce image resolution before inserting. For huge Excel files, consider dividing data into multiple sheets or removing unnecessary columns.

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Choose the Right Format for Your Need

Not all formats are appropriate for all uses. Use PDF for final documents that won't be edited and must look the same on any device. Use Word/Excel for documents requiring collaborative editing. Use JPG for photographs where file size matters. Use PNG for graphics with text, logos, or images requiring transparency. Use WebP for modern web optimizing loading without sacrificing visible quality.

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Group Similar Conversions

If you need to convert multiple files of the same type, do it in one session to save time. For example, if you have 10 Word documents you need to convert to PDF, convert them all at once instead of going back and forth. Although we process one file at a time, continuous flow is more efficient.

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Always Keep the Original File

Although our conversions are reliable, it's always good practice to keep the original file until verifying the converted file is exactly what you need. Conversions are generally one-directional (for example, it's harder to convert PDF to editable Word than Word to PDF), so keep original sources.

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Use Descriptive File Names

Before converting, rename your files with descriptive names without special characters. This makes it easier to identify files after downloading conversions. Avoid special characters like: / \ : * ? " < > | that can cause problems on different operating systems. Use hyphens or underscores to separate words instead of spaces.

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Frequently Asked Questions About File Conversion

Answers to the most common doubts about our tools

Do I need to register or create an account to use the tools?

No, absolutely all our tools are 100% free and require no registration, subscription or account creation. You can start converting files immediately without providing email, name, or any personal information. Simply select the tool you need, upload your file, and you're done.

Is there a limit on files I can convert daily?

There are absolutely no limits. You can convert as many files as you need, any day, at any time. We impose no daily, weekly or monthly restrictions. Our philosophy is to provide completely free access to all our tools without artificial barriers.

What happens to my files after converting them? Are they safe?

The security and privacy of your files is our top priority. All files are transmitted via HTTPS connection with end-to-end SSL encryption. Once conversion is complete and your file downloaded, we automatically delete all files (original and converted) from our servers after 1 hour. We don't store, share or access the content of your files. We have no backup copies or permanent records of what you upload.

Do the tools work on mobile devices like tablets and smartphones?

Yes, all our tools are designed with responsive design and work perfectly on any device: desktop computers (Windows, Mac, Linux), laptops, tablets (iPad, Android), and smartphones (iPhone, Android). The interface automatically adapts to screen size to provide the best user experience on each device. You don't need to install mobile apps, everything works directly in your device's web browser.

What is the maximum file size I can convert?

The current limit is 20MB per file. This size is sufficient for the vast majority of typical documents: PDFs up to 200-300 pages, extensive Word documents, Excel spreadsheets with thousands of rows, high-resolution images, and CSV files with tens of thousands of records. If your file exceeds this limit, we recommend compressing it first, dividing it into smaller parts, or reducing the resolution of embedded images. We established this limit to ensure fast conversions and smooth experience for all users.

Do converted files maintain original quality?

Yes, we use the best quality conversion algorithms available to maintain maximum fidelity to the original file. For document conversions (Word to PDF, CSV to Excel), format, styles, fonts, images, and structure are perfectly preserved. For images, we maintain original resolution and quality unless you specifically use compression or resizing tools. For PDFs, all conversions maintain vector quality of text and graphics. The only exception is intentional PDF or image compression where intelligent compression optimized to balance file size and visual quality is applied.

Can I use these tools for commercial projects?

Yes, you can freely use all our tools for both personal and commercial projects without any restrictions. There is no difference between personal or professional use, everyone has access to the same functionalities without limitations. This includes use in companies, freelancing, corporate projects, and any type of commercial application. We don't charge commercial licenses or require attribution.

What web browsers are compatible with the tools?

All our tools work in modern web browsers: Google Chrome (version 90+), Mozilla Firefox (88+), Microsoft Edge (90+), Safari (14+), Opera (76+), and Brave. We recommend keeping your browser updated to the latest version to ensure full compatibility and best performance. Some advanced tools use modern APIs like Web Crypto API, Canvas API, and File API that require updated browsers. If you experience problems, verify that your browser is updated.

Are conversions performed online or locally on my device?

It depends on the tool. Complex file format conversions (like Word to PDF, CSV to Excel, advanced PDF operations) are performed on our secure servers via specialized APIs to ensure maximum compatibility and quality. However, many text tools, utilities, and unit converters run completely in your browser via JavaScript without sending any data to our servers, providing total privacy and instant speed. We clearly indicate on each tool when processing is local.

Can I convert multiple files simultaneously?

Some tools support batch processing of multiple files simultaneously. For example, our PDF merging tool allows you to upload up to 10 PDF files at once. The image to PDF tool also accepts multiple images to create a single PDF with all of them. However, most tools process one file at a time to ensure optimal speed. If you need to convert many files, simply repeat the process, there are no usage limits.