InjectGPT
Inject your custom system and developer prompt. Also lets you change the model and hardcode it!
As of June 2026, InjectGPT has 779 users and a 3.40/5 rating from 5 reviews in the Productivity category.
Usersdown 6.7 percent−6.7%
779
779
Ratingdown 15.0 percent−15.0%
3.40
5 reviews
Reviewsup 25.0 percent+25.0%
5
Version
2.0.4
Manifest V3
History
11 snapshotsTracking since Apr 1, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 1, 2026 | 835 | 4.00 | 4 | 2.0.4 |
| Apr 16, 2026 | 846 | 4.00 | 4 | 2.0.4 |
| Apr 22, 2026 | 862 | 3.40 | 5 | 2.0.4 |
| Apr 27, 2026 | 855 | 3.40 | 5 | 2.0.4 |
| May 4, 2026 | 838 | 3.40 | 5 | 2.0.4 |
| May 10, 2026 | 846 | 3.40 | 5 | 2.0.4 |
| May 15, 2026 | 814 | 3.40 | 5 | 2.0.4 |
| May 21, 2026 | 807 | 3.40 | 5 | 2.0.4 |
| May 27, 2026 | 781 | 3.40 | 5 | 2.0.4 |
| Jun 3, 2026 | 768 | 3.40 | 5 | 2.0.4 |
| Jun 9, 2026 | 789 | 3.40 | 5 | 2.0.4 |
| Now | 779 | 3.40 | 5 | 2.0.4 |
Permissions & access
- Permissions
- storage
- Host access
- https://chatgpt.com/*, https://*.chatgpt.com/*
Screenshots
About
This extension lets you override the System prompt of OpenAI's model ChatGPT. You can change the system prompt, developer prompt and model as you like. This also works with no account. You can set your system prompt and it will always remember it, also with completely new chats. It intercepts on the network level and injects the system prompt automatically.
Technical
- Version
- 2.0.4
- Manifest
- V3
- Size
- 86.35KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- aciknfjmhejepfklbedciieikagjohnh
- Developer ID
- u9db03e93763f14758eb0c1cf6d240cd4
- Developer Email
- [email protected]
- Created
- Feb 4, 2026
- Last Updated (Store)
- Mar 10, 2026
- Last Scraped
- Jun 9, 2026
- Website
- —
- Support URL
- —
- Privacy Policy
- —
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Data sourced from the Chrome Web Store · last verified Jun 9, 2026.