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All Filesmith Converters
29 free file converters running entirely in your browser. No uploads, no signups, no software to install — your files never leave your device.
🔒 No upload
⚡ Instant
✓ Free
∞ No size limit
Images 16
Convert between JPG, PNG, WEBP, AVIF, HEIC, BMP, TIFF, SVG and PDF.
Video 5
Convert and compress between MP4, MOV, MKV, AVI, WEBM and more.
Audio 5
Convert between MP3, WAV, FLAC, M4A, OGG and more.
Audio to MIDI 3
Transcribe audio recordings into editable MIDI files for any DAW.
Why convert in your browser?
Every Filesmith converter runs entirely on your device using WebAssembly and the Canvas API — the same technology your browser uses to render games and video. Your files are never uploaded to any server. They're processed locally, instantly, and privately.
That means no signup, no watermarks, no file size limits beyond your device's memory, and no risk that someone else can access what you're converting. The pages also load and work offline once you've visited them once (image conversions specifically — audio and video need a one-time download of the FFmpeg engine).
Don't see the conversion you need? The main converter on the homepage handles many more format combinations than the 29 dedicated pages above.
Frequently asked
How is Filesmith different from other online file converters?
Most online converters upload your files to a server, process them there, and send them back. Filesmith runs the entire conversion in your browser using WebAssembly and the Canvas API. Your files never leave your device. There's no server processing them, no signup, no watermarks, no file limits, and no cost — just open the page, drop your file, and download the result.
Is there a file size limit?
There's no hard limit imposed by Filesmith. The real limit is your device's available memory, since everything is processed locally in your browser. Images of any normal size work without issue. Multi-gigabyte video files may be slow or run into memory limits depending on your device.
What if my exact conversion isn't on this list?
The Filesmith homepage handles many more format combinations than the 29 dedicated converter pages — it can convert between any of the supported image, video, or audio formats freely. The dedicated pages exist for the most common conversions; if yours isn't here, just use the main converter on the homepage.
Can I convert files in batches?
Yes — for images. You can drop a folder or select multiple images at once and convert them all together. Audio and video conversions are processed one file at a time because each one is CPU-intensive, but you can queue several up without re-uploading them.