File Converters

PDF, image, audio, video, document, eBook, and archive converters that run entirely in your browser using WebAssembly builds of established open-source libraries (FFmpeg, pdf.js, pdf-lib, libheif, tesseract).

Your files never leave your device — there is no upload endpoint. Open the browser DevTools Network tab while using any converter and you will see no file-upload request. The FBI has publicly warned about malicious online file converters; local processing sidesteps that risk entirely.

15+ tools

PDF Tools

Convert PDFs to Word, Excel, PowerPoint, images, and more. Edit, merge, split, and sign PDFs.

Popular conversions

PDF to Word Merge PDF Sign PDF Split PDF

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350+ tools

Image Converters

Convert between JPG, PNG, WebP, HEIC, GIF, BMP, and more. Batch convert multiple images at once.

Popular conversions

HEIC to JPG JPG to PNG PNG to WebP WebP to JPG

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230+ tools

Video Converters

Convert videos between MP4, AVI, MKV, MOV, WebM, and 15+ formats. All processing happens locally.

Popular conversions

MP4 to AVI MKV to MP4 MOV to MP4 WebM to MP4

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280+ tools

Audio Converters

Convert audio files between MP3, WAV, FLAC, OGG, M4A, and 16+ formats with quality settings.

Popular conversions

MP3 to WAV WAV to MP3 M4A to MP3 WAV to FLAC

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90+ tools

Document Converters

Convert documents between Word, Excel, PowerPoint, PDF, HTML, CSV, and more formats.

Popular conversions

DOCX to PDF XLSX to PDF PPTX to PDF HTML to PDF

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55+ tools

eBook Converters

Convert eBooks between EPUB, MOBI, AZW, PDF, and other popular formats for any device.

Popular conversions

EPUB to PDF PDF to EPUB MOBI to EPUB MOBI to PDF

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42+ tools

Archive Tools

Create and extract ZIP, 7Z, RAR, TAR, and GZ archives. Compress and decompress files easily.

Popular conversions

Compress Files Decompress Files ZIP to TAR RAR to ZIP

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Unit Converters

Convert cm to inches, kg to lbs, ml to cups, celsius to fahrenheit and more — free, instant, and fully private in your browser.

Length Weight Volume Temperature Data Storage Speed Area Time Pressure Energy Power Fuel Torque Data Rate Angle Cooking (grams per cup)Unit Comparisons (which is bigger)

Frequently Asked Questions

Are these file converters really free?

Yes, every converter on this page is 100% free with no hidden fees, no signup required, and no file size limits beyond what your browser can handle. There is no premium tier — all features are available to everyone.

Do my files get uploaded to a server?

No. Every converter processes your files locally in your browser using WebAssembly. Your files never leave your device. You can verify this by opening your browser's DevTools Network tab — you will not see any file upload requests.

What file formats are supported?

We support 100+ format conversions across images (JPG, PNG, WebP, HEIC, GIF, BMP, TIFF), audio (MP3, WAV, FLAC, OGG, AAC, M4A), video (MP4, WebM, AVI, MOV), documents (PDF, Word, Excel, PowerPoint), and archives (ZIP, TAR, GZ).

Is there a file size limit?

The limit depends on your device's available memory since all processing happens in your browser. Most modern devices can handle files up to several hundred megabytes. There is no artificial file size cap.

Why Use Our Converters?

100% Private

All conversions happen in your browser. Your files never leave your device or get uploaded to any server.

Fast & Free

No signup required. No file size limits. No watermarks. Just fast, free file conversion.

Batch Processing

Convert multiple files at once. Drag and drop your files and convert them all in one go.