u/Emergency_Win3970

I built a Chrome extension called PromptLab that basically turns ChatGPT into a mini “version control system” for prompts.

(Not promoting just validating)

What it does:

• Saves every prompt you send in a session
• Lets you pin important prompts so they get auto-injected into future inputs
• Lets you branch prompts (⎇) so you can try different variations without losing the original
• Shows prompt history, diffs, and basic tagging (good/final/experiment)
• Tracks rough context/token usage

The idea is: instead of randomly iterating prompts, you can actually evolve them, compare versions, and reuse the best ones.

Honest question:
Is this something you’d actually pay for (like $5–10/mo), or does this feel like a “cool but unnecessary” dev tool?

Also:

• What’s missing for this to be genuinely useful?
• Would non-devs even care about prompt versioning?

Trying to figure out if this is a real product or just a personal productivity hack.