Toolbox: Run FFmpeg, Imagemagick, 7Zip and Friends in the Browser
I got sick of sketchy online converter sites that phone home and may keep your files and walking non-technical friends through brew/apt/choco installs every time they need ffmpeg or imagemagick and telling them what command to run. So I built Toolbox, a 100% open source site that compiles my most-used command-line tools to WebAssembly and runs them fully client-side: - FFmpeg (video + audio) - ExifTool (metadata) - 7-Zip (archive/zip/rar/7z) - ImageMagick - Pandoc Roadmap: - Batch mode - Shareable presets. Complex commands can be saved as URLs so you can send a…
What it does
In the maker’s words, at launch
I got sick of sketchy online converter sites that phone home and may keep your files and walking non-technical friends through brew/apt/choco installs every time they need ffmpeg or imagemagick and telling them what command to run. So I built Toolbox, a 100% open source site that compiles my most-used command-line tools to WebAssembly and runs them fully client-side: - FFmpeg (video + audio) - ExifTool (metadata) - 7-Zip (archive/zip/rar/7z) - ImageMagick - Pandoc Roadmap: - Batch mode - Shareable presets. Complex commands can be saved as URLs so you can send a one-click recipe to a friend, inspired by cyberchef - GPU acceleration via WebGPU someday? (mostly looking at ffmpeg, maybe with WebCodec) Source: https://github.com/akshetpandey/toolbox (MIT licensed) I’d love feedback, bug reports, and requests for other tools. If it helps you ditch shady sites or long install docs, mission accomplished.
Does the same job
all alternatives →- WAWebAssembly and ffmpeg = Quick clip, overlay, resize and GIF-ize videos2021 · vidds.co · ▲104

- VCVid2gif – Convert .mp4/.mov to optimized GIFs locally using FFmpeg2025 · github.com · ▲6
As I worked on my personal projects, I kept running into the same problem: There wasn’t a simple, local way to convert screen recordings into GIFs that look clean in a README.md. Recordings don’t render inline on GitHub READMEs, and I didn’t want to rely on bulky video editors or upload my files to some sketchy ad-filled site. So, I wrote a small script. I found myself using it so often that I turned it into a proper tool: minimal, local, and built for developers who care about good documentation. I’m not some elite hacker — just a dev who wanted a better way to share demos. Thought others…
- MVMusic video using AI (Stable Diffusion) and a text editor – You can too2022 · old.reddit.com · ▲9
I went nuts on Sunday after stumbling on this animator script for the automatic branch: https://github.com/Animator-Anon/Animator And then it's a ton of keyframing. I also found that the timings all have to be earlier than the timestamp you want to account for how long it takes to denoise to your new scene - so like .4 gives smoother but longer, .7 is snappy. To get stuff to keep showing up and stay dynamic you can zoom out continuously, it needs a UI, badly. If you're on windows you'll need ffmpeg too. I watched this when it came out last week:…
- FPFFmpeg Playground2025 · bigballi.com · ▲6
- VVideo2SRT2023 · ▲9
Hello HN! I’m a bachelors student pursuing Artificial Intelligence, Robotics and Signal processing and during the year I had the goal to build my first AI Tool and launch it. I got inspired by how capable Whisper is, and combined the Whisper CPP Bindings along with FFMPEG.Wasm to create a tool that is capable of transcribing and captioning video files that contain one or more video tracks. Along with that, I’ve also added the support for transcribing audio files with the option to export those outputs as .SRT, .WebVTT or simply a text file. All done privately on a user’s web browser with…
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