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Convert any file, right in your browser

Images, audio, video and documents — fast, private, with no upload to our servers.

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File converter

Pick a category, drop your files and choose the output format.

PNG to WebP
Smaller files, same quality.
JPG to PNG
Lossless PNG output.
HEIC to JPG
Make iPhone photos universal.
WAV to MP3
Compress audio on the fly.
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Why ConvertX stays free — forever

We built this project so anyone can convert files without paywalls, accounts, or hidden limits. Here is what that promise means in practice.

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Free tools today — and always

Every converter on ConvertX is free to use: no trials, no premium tiers, and no credit packs. We will never put core conversion features behind a subscription. Whether you convert one photo or a hundred files a week, the price stays zero.

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No registration required

You do not need an account, email address, or social login to start converting. Open a tool, upload your file, download the result — that is the entire workflow. We believe file conversion should be as frictionless as possible.

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Privacy-first processing

Many image, audio, and video conversions run entirely in your browser. Your files never leave your device for those jobs. When server processing is required for documents or specialized formats, uploads are handled securely and removed automatically — typically within one hour.

File formats: what to choose

A quick guide to strengths and trade-offs of popular formats — so you pick the right one before converting.

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Images

Raster and vector graphics for web, print, and photography.

Common extensions: PNG, JPG, WebP, AVIF, GIF, SVG, HEIC, TIFF

Advantages
  • + WebP and AVIF offer excellent compression for the web
  • + PNG keeps transparency and sharp edges
  • + SVG scales without quality loss
Disadvantages
  • − RAW and TIFF files are large and slow to share
  • − JPEG loses quality on every re-save
  • − Some formats are not supported in older browsers
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Audio

Music, podcasts, voice recordings, and sound effects.

Common extensions: MP3, WAV, FLAC, OGG, AAC, M4A, OPUS

Advantages
  • + FLAC and WAV preserve full quality for editing
  • + MP3 and AAC are universally compatible
  • + OPUS delivers great quality at low bitrates
Disadvantages
  • − Uncompressed WAV files are very large
  • − Lossy formats cannot be restored to original quality
  • − DRM-protected files may not convert
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Video

Clips, streams, screen recordings, and movies.

Common extensions: MP4, WebM, MOV, MKV, AVI, MPEG

Advantages
  • + MP4 (H.264/H.265) plays almost everywhere
  • + WebM is efficient for web embedding
  • + MKV can hold multiple audio and subtitle tracks
Disadvantages
  • − High-resolution video needs lots of storage and bandwidth
  • − Re-encoding always takes time and may reduce quality
  • − Some codecs require licensing for commercial use
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Documents

Office files, PDFs, ebooks, and plain text.

Common extensions: PDF, DOCX, XLSX, PPTX, ODT, EPUB, TXT

Advantages
  • + PDF locks layout for printing and sharing
  • + DOCX and ODT are easy to edit collaboratively
  • + Plain text works on any device
Disadvantages
  • − PDF is hard to edit without special tools
  • − Complex layouts may shift after conversion
  • − Scanned PDFs need OCR for editable text
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Archives

Compressed bundles of files and folders.

Common extensions: ZIP, 7Z, RAR, CAB, ARJ

Advantages
  • + ZIP opens natively on most operating systems
  • + 7Z achieves very high compression ratios
  • + Archives simplify bulk downloads and email attachments
Disadvantages
  • − Password-protected archives need the correct password
  • − RAR may require extra software on some systems
  • − Corrupted archives cannot be fully recovered
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TAR & Unix compression

Tape archives and layered compression common on Linux, macOS, and servers.

Common extensions: TAR, GZ, TGZ, BZ2, XZ, ZSTD

Advantages
  • + TAR preserves Unix permissions and folder structure
  • + GZ, XZ, and ZSTD offer strong compression for backups
  • + Standard format for software packages and server deploys
Disadvantages
  • − Windows needs extra tools to open TAR without conversion
  • − Double extensions like .tar.gz can confuse some users
  • − Solid compression makes partial extraction slower

How it works

Three simple steps — no account, no waiting in line.

1

Choose a tool

Pick a conversion preset — JPG to WebP, MP4 to WebM, PDF to DOCX, and hundreds more.

2

Drop your file

Drag and drop or click to browse. Most media converts entirely in your browser.

3

Download the result

Get your converted file instantly. No watermarks, no email required.

Every format you need

From everyday images to professional documents — one place for all your conversions.

🖼️ Images
🎵 Audio
🎬 Video
📄 Documents
🖼️

Images & photos

PNG, JPG, WebP, AVIF, GIF, SVG, HEIC and more. Resize, compress and convert without quality loss.

🎧

Audio & video

MP3, WAV, FLAC, OGG, MP4, WebM, MOV — extract audio, change codecs, trim and convert.

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Documents & office

PDF, DOCX, XLSX, PPTX, ODT — merge, split, compress and convert office files.

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Specialized formats

3D models, fonts, archives, GIS data, disk images, subtitles and email — we cover niche formats too.

Featured tools

All converters →
PNG to WebP
Smaller files, same quality.
JPG to PNG
Lossless PNG output.
HEIC to JPG
Make iPhone photos universal.
PNG to AVIF
Next-gen image format.
WAV to MP3
Compress audio on the fly.
MP3 to OGG
Open format, free codec.
FLAC to MP3
Lossless to portable.
MOV to MP4
Universal video format.
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Your files never leave your device

We run conversions in your browser via WebAssembly. Nothing is uploaded to a server.

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Fast and free

No queues, no signup. Drop in a file and download the result in seconds.

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Many formats

PNG, JPG, WebP, AVIF, MP3, WAV, MP4, WebM, PDF — and dozens more.

Trusted by creators worldwide

"Client wanted JPEGs, my phone saves HEIC. I dropped in a folder of photos and had a zip back in a couple of minutes."

S
Sarah M.
Photographer

"I batch-convert podcast episodes to MP3 in seconds. Zero hassle."

A
Alex K.
Podcaster

"Half our team is in Yerevan, half in Moscow — everyone uses it in their own language. I'm no longer the “how do I convert this?” help desk."

A
Armen V.
Designer

From the blog

All posts →
Why Convert PSD to PNG for Web Design
Tutorials
Why Convert PSD to PNG for Web Design
Discover why converting PSD files to PNG is a standard practice for web designers and how it improves your workflow.
 Audio Transcoding Explained: Balancing Quality and Compatibility
Tutorials
Audio Transcoding Explained: Balancing Quality and Compatibility
Discover what happens during audio transcoding and why converting between formats is essential for modern media consumption.
 Understanding Audio Bitrate and Sample Rate in File Conversion
Tutorials
Understanding Audio Bitrate and Sample Rate in File Conversion
Learn how bitrate and sample rate affect the quality of your audio files and why these settings matter during conversion.

Frequently asked questions

Image, audio and video conversions run entirely in your browser via WebAssembly — files never reach our servers. Documents and 3D models are converted on the server and removed within an hour.
Browser-side conversions are limited only by your device memory. Server-side jobs are capped at 500 MB per upload.
No. Drop a file in and download the result — no sign-up, no watermark.
We offer 160+ ready-made converters across images, audio, video, documents, 3D models, fonts, archives, subtitles and email.

Ready to convert your first file?

Join thousands of users who convert files privately, for free, every day.

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