The Lab · Tool

mdcompress

Strip the fluff from Markdown before it reaches an LLM — badges, boilerplate, hedging prose, dead TOCs. The real Go engine, compiled to WebAssembly: your text is compressed in this tab and never uploaded.

  • Runs in your browser
  • Nothing uploaded
  • Open source
Loading the compressor — a one-time ~3 MB download…

Markdown in

Result

Paste Markdown, pick a tier, and hit Compress.

Token counts are an approximate len / 4 estimate — good for comparing before/after, not for billing. The browser build runs the single-document rules; cross-file deduplication and Tier-3 LLM rewriting need the mdcompress CLI.