Mochify

Mochify is a background tool. Mochify compresses and converts images and PDFs from plain-English prompts, via web app, CLI, local or hosted MCP server, REST API and Chrome extension. It includes background removal and keeps image bytes out of agent context.

Mochify is a compression and conversion engine for images and PDFs, with video and audio conversion handled in the browser. Instead of format pickers and quality sliders, the user describes the outcome in plain English, such as converting to WebP at a set width or stripping location data, and the tool works out the parameters for each file. Background removal, smart cropping, EXIF stripping and HDR gain-map handling sit alongside the usual format conversions. The same engine is reachable through six surfaces: a web app, a single Rust command-line binary, a local MCP server for Claude Desktop, Claude Code, Cursor and other stdio clients, a hosted MCP connector using OAuth, a REST API, and a Chrome extension. That spread makes it relevant to ecommerce teams optimizing product photos for Core Web Vitals, agencies batching client deliverables, creators who want private resizing, and developers wiring image handling into build scripts, CI or agent pipelines. In practice, the natural-language layer ("Magic Flow") uses a language model to parse the prompt, then hands execution to the native engine. Supported inputs include JPEG, PNG, WebP, AVIF, HEIC/HEIF and JPEG XL, with outputs in JPEG (via Jpegli), PNG, WebP, AVIF and JPEG XL. A distinctive design choice is that the local MCP server and CLI read files from disk, so only paths and metadata cross the agent's context window rather than base64 image bytes. Originals are streamed through server RAM and discarded, and a Docker guide covers self-hosting for a fully on-machine setup. Among alternatives, Mochify sits between consumer drag-and-drop optimizers and developer-oriented image APIs. Its angle is agent-friendliness and a single engine across every entry point, with MCP and API access included on the free tier. Three files can be processed without an account, and paid plans and a one-off Day Pass raise monthly allowances, file size limits and batch size.