Prompt Vault FAQ
Common questions about storage, privacy, backup and sharing.
Frequently asked questions (7)
Where is my prompt data stored?
Every prompt is stored only in your browser’s localStorage. Nothing is sent to a server or database, and the operator cannot see your prompts. They are visible only on the same device and browser, so use the "Export" button at the top to save a JSON backup before switching devices.
Do I need to sign up or log in?
No. There are no accounts, logins or signups at all. Open the page and you can immediately add, search and copy prompts. With no account there are no lost passwords, email verifications or subscriptions to cancel, and you never enter any personal information.
Will my prompts disappear if I clear browser data?
Yes. Because it is localStorage-based, clearing your site data or cache, or closing a private window, can erase them. So back up important prompts with "Export" to a JSON file kept in your own cloud drive, and restore them with "Import" on a new setup. Import merges with your existing data.
How do I move prompts to another device?
On the old device press "Export" to download a JSON file, then open the same tool on the new device and choose that file under "Import". Import is a merge, not an overwrite: identical prompts keep whichever version was edited more recently and only new prompts are added, so importing twice never creates duplicates.
Can I share a prompt with someone else?
Press the share (🔗) button on any prompt and a link with the prompt encoded in the URL (?import=) is copied to your clipboard. When someone opens that link, the prompt is added to their own library. No server is involved — the content travels inside the link, which makes it easy to share in chat or social posts.
Which AI platforms can I save prompts for?
Anything text-based. ChatGPT, Claude, Gemini and Midjourney labels are built in, and you can file other tools (Perplexity, Copilot, etc.) under "Other". Combining a platform label with tags makes later search and filtering much more precise.
Is there a storage limit?
It follows your browser’s localStorage limit (typically 5–10MB), which is plenty for hundreds of normal text prompts. Very long prompts can hit URL-length limits when shared as a link, so for those it is safer to hand them over via JSON export instead.