Looking for a PromptPerfect alternative?
PromptPerfect closed signups in June 2026 and shuts down on September 1, 2026. If you kept your prompt library there, you need a new home for it. Prompt Box is a free, local-first Chrome extension: your prompts live in your browser, organized with tags, and available in any text field through expansion shortcuts.
Side by side
| PromptPerfect | Prompt Box | |
|---|---|---|
| Saved prompt library | Yes | Yes, local-first |
| Works across AI tools (ChatGPT, Claude, Gemini, image models) | Yes | Yes, expansion works in any text field |
| Text expansion shortcuts | No | Yes, type a shortcut in any site |
| Prompt optimization engine | Yes | On the roadmap: an improve-this-prompt assistant using your own API key |
| Import your existing library | N/A | Yes, CSV import in one step |
| Requires an account | Yes | No |
| Price | Discontinued | Free, with optional Pro sync coming soon |
Moving your prompts takes one file
- Export your prompts from PromptPerfect (or paste them into a simple CSV with title and text columns).
- Install Prompt Box from the Chrome Web Store.
- Open Settings, choose Import, and select your CSV. Done.
Frequently asked questions
- When does PromptPerfect shut down?
- PromptPerfect closed new signups in June 2026 and shuts down entirely on September 1, 2026.
- Can I import my PromptPerfect prompts into Prompt Box?
- Yes. Put your prompts in a CSV with title and text columns, then use Settings, Import in the Prompt Box extension. It takes one step.
- Does Prompt Box optimize prompts like PromptPerfect did?
- Not yet. An improve-this-prompt assistant using your own API key is on the roadmap. Prompt Box today focuses on the library and expansion workflow.