Tools
AI prompt engineer for ChatGPT, Claude, Gemini, and Copilot. Rewrite, optimize, and enhance prompts with one click.
Compare extensions
Tools
Transform unclear questions into expert prompts. Get better AI responses from ChatGPT and Claude with one click.
Audience & ratings
Store users
163
≈100K
Ratings
What stands out
MetaPrompt - AI Prompt Engineer & Optimizer for ChatGPT & Claude reports the larger audience. These are store counts, including rounded estimates. The rating difference is 0.23 points across 24 and 107 ratings.
Category overlap does not establish that two products serve the same workflow.
Product & publisher
Publisher
Aeximius SA
justgoextension
Publisher portfolio
1 listing
1 listing
Listing status
Active
Active
Manifest
Version 3
Version 3
Package size
3.75MiB
56.3KiB
Permissions & access
Requested capabilities describe access, not developer intent or a safety verdict.
API permissions
3 requested
- storage
- identity
- sidePanel
2 requested
- storage
- offscreen
Website patterns
2 recorded
- https://prompt-engineer.io/*
- https://www.prompt-engineer.io/*
5 recorded
- https://www.googleapis.com/*
- https://metaprompt-e64e3.firebaseio.com/*
- https://us-central1-metaprompt-e64e3.cloudfunctions.net/*
- https://firestore.googleapis.com/*
- https://identitytoolkit.googleapis.com/*
Releases
Explore the release history
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Create your free accountEvidence behind this comparison
Both listings observed 2 Oct 2026.
Store users and ratings are observations, not revenue or lifetime installs. A larger audience or a higher score does not establish product quality.
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Prompt Engineer: AI Prompt Optimizer for ChatGPT, Claude & GeminiTools
MetaPrompt - AI Prompt Engineer & Optimizer for ChatGPT & ClaudeTools