OPEN SOURCE · LOCAL-FIRST · MCP-NATIVE
Every tool works three ways.
A page for people, a REST call for scripts, an MCP tool for agents — open source, and your files stay on your device.
FOR PEOPLE
Open a tool page, drop a file, download the result — client-side tools run entirely in your browser.
FOR SCRIPTS
$ curl https://opentoolset.com/api/v1/tools
Every server-side tool is a REST endpoint: submit a job, poll its progress, download the result.
FOR AGENTS
$ curl https://opentoolset.com/llms.txt
Agents discover every tool through llms.txt — MCP access is soon.
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AI1 tool
Image2 tools
ALL TOOLS
Compress Imageimage
Compress JPEG, PNG, or WebP images with a quality slider — runs entirely in your browser. Files never leave your device.
Transcribe Audioai
Turn speech in audio or video files into text — download the transcript as TXT, SRT, VTT, or JSON.
Remove Backgroundsoon
Cut the background from any image — coming soon.