bctx — Token Compression

Compress pasted content before sending to AI tools. Reduces token consumption by up to 90% on paste and send.

Bctx automatically compresses your prompts before they reach the AI — saving up to 90% of tokens on every paste and send. When you paste code, logs, or long context into an AI chat, most of it is noise: blank lines, comments, boilerplate, repeated patterns. bctx strips it to pure signal before the message is sent — less clutter for the model, fewer tokens for you. HOW IT WORKS ──────────── 1. Paste or type your prompt as normal 2. Hit Send (or paste) — bctx intercepts it 3. Compresses the text using context-aware patterns 4. Shows savings in a small badge: "1,200 → 180 tok (-85%)" 5. Sends the compressed message automatically SUPPORTED SITES ─────────────── Ii is supporting almost every AI Chat like websites and work also on new one upon allowing the extension to do so. FEATURES ──────── ✓ Auto-compress on paste (Cmd/Ctrl+V) ✓ Auto-compress on send (Enter key or Send button) ✓ Token savings badge shows before/after count and compression path ✓ Hold Shift while pasting to bypass compression ✓ Works with the bctx CLI for maximum offline compression ✓ Cloud fallback works immediately — no setup required ✓ Toggle on/off from the popup COMPRESSION PIPELINE ──────────────────── The extension tries three paths in order: 1. Local bctx CLI (optional install) — fastest, fully offline, AST-aware across 18 languages, up to 99% reduction 2. Cloud API at api.betterctx.com — instant fallback, no setup 3. Inline regex — always available, no network required OPTIONAL: INSTALL THE bctx CLI ─────────────────────────────── For offline, maximum-quality compression: - brew install bctx - npm install -g bctx-bin - curl -fsSL https://bctx.dev/install.sh | sh PRIVACY ─────── When the bctx CLI is installed: compression runs entirely on your machine. No text leaves your device. When using the cloud fallback (default): your text is sent to api.betterctx.com/compress for compression. The endpoint does not store your content. You can disable cloud compression in the popup or install the CLI to stay fully local. Full privacy policy: https://betterctx.com/privacy