History

8 snapshots

Tracking since Apr 5, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 5, 2026	3	—	—	1.2.0
Apr 18, 2026	5	—	—	1.2.0
Apr 25, 2026	9	5.00	1	1.2.5
May 14, 2026	8	5.00	1	1.2.5
May 20, 2026	11	5.00	1	1.2.5
May 26, 2026	9	5.00	1	1.2.5
Jun 2, 2026	13	5.00	1	1.2.5
Jun 8, 2026	12	5.00	1	1.2.5
Now	11	5.00	1	1.2.5

Changelog

Apr 18, 2026

description

PromptLens is an open-source browser extension that acts as a real-time co-pilot for AI prompts. It helps you write better, more effective prompts by providing inline suggestions and one-click refinements. Built with a privacy-first, BYOK (Bring Your Own Key) model, it works across major AI chat platforms like ChatGPT, Claude, and Gemini.

Rewrite weak prompts before you send them.

plenz is an open-source Chrome extension that helps you refine AI prompts in real time, inside the tools you already use. It suggests stronger, clearer prompt rewrites inline — before you hit send — so you get better first-pass output with less back-and-forth.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
HOW IT WORKS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

1. Add plenz to Chrome.
2. Choose your AI provider and add your API key.
3. Set an active model.
4. Start typing in a supported AI chat tool — plenz analyzes your draft and suggests a cleaner, more structured rewrite before you send.

Setup takes about a minute.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
SUPPORTED AI TOOLS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

plenz works inline directly inside major web-based AI chat interfaces and custom chat surfaces.

No separate prompt editor. No extra tabs. Just better prompts inside the workflow you already have.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
BRING YOUR OWN KEY (BYOK)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

plenz does not lock you into one AI provider. Connect your own credentials and choose from a wide variety of supported AI providers, or configure custom local and self-hosted models.

Usage is billed directly by the provider you choose — no plenz markup.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
WHY PLENZ
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

✦ Better first-pass responses — plenz catches vague phrasing and suggests stronger rewrites so your first result is more likely to be useful.

✦ Faster drafting — Accept a better prompt version inline and keep moving, instead of manually tightening every request.

✦ More control — Use your own provider and model. Improve prompts without being locked into one AI stack.

✦ Lower privacy anxiety — Prompt text goes only to the provider you configure. plenz does not route your prompts through a central relay service.

✦ Keyboard-friendly — Accept or dismiss suggestions without reaching for the mouse.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
PRIVACY-FIRST & OPEN SOURCE
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

plenz is built for control, not lock-in.

• API keys and prompt text stay in your browser storage.
• Prompt analysis does not require a central plenz backend.
• The codebase is open source — inspect it, fork it, contribute to it.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
WHO IT'S FOR
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

plenz is built for people who use AI chat tools regularly and want better output without turning prompt writing into a separate job:

• Founders and operators who use AI for planning, strategy, and internal comms
• Marketers and writers who draft with AI daily
• Developers who use AI for coding, debugging, and technical writing
• Researchers and analysts who need structured, specific AI responses
• Anyone who wants clearer AI output with less manual rewriting

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
FAQ
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Q: Does plenz send my prompts to its own server?
A: No. Prompt text is sent only to the AI provider you configure. plenz does not require a central backend for prompt analysis.

Q: Which model does plenz use?
A: You choose the provider and model. plenz supports major AI providers as well as custom and self-hosted endpoints.

Q: Do I need to leave my current AI tool?
A: No. plenz works inline inside the AI chat workflow you already use.

Q: Is it really free?
A: plenz is free and open source. You pay only your AI provider for model usage at their standard rates.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Better prompts. Less rewriting. No new workflow.

Install plenz and start refining prompts today.

Apr 18, 2026

short_description

Open-Source AI Prompt Refinement co-pilot

Rewrite weak AI prompts before you send them. Inline suggestions for top AI chats. Open source, BYOK, privacy-first.

Apr 18, 2026
name
```
PromptLens
```
```
plenz - AI Prompt Refiner
```

Permissions & access

Permissions: storageidentity
Host access: https://api.openai.com/*, https://generativelanguage.googleapis.com/*, https://www.googleapis.com/*, https://apis.google.com/*, https://www.gstatic.com/*, https://securetoken.googleapis.com/*, https://identitytoolkit.googleapis.com/*, https://firebaseinstallations.googleapis.com/*, https://firestore.googleapis.com/*, https://api.anthropic.com/*, https://api.mistral.ai/*, https://api.groq.com/*, https://openrouter.ai/*, http://localhost/*, http://127.0.0.1/*

Screenshots

About