Headerline
Inject custom HTTP request headers for development and testing
As of July 2026, Headerline has — users in the Developer Tools category.
Usersno change0%
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Ratingno change0%
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— reviews
Reviewsno change0%
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Version
1.0
Manifest V3
History
1 snapshotsTracking since Jul 11, 2026.
Not enough history yet for this metric — the chart fills in as we collect more snapshots.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Jul 11, 2026 | — | — | — | 1.0 |
| Now | — | — | — | 1.0 |
Permissions & access
- Permissions
- declarativeNetRequestWithHostAccessstorage
- Host access
- <all_urls>
Screenshots
About
Lightweight Chrome extension for injecting custom HTTP request headers. Supports up to 5 independent headers, each with its own on/off toggle. Built as a minimal, ad-free alternative to ModHeader for local development and blue/green testing.
Technical
- Version
- 1.0
- Manifest
- V3
- Size
- 6.75KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- ljnkkcjbkkaaabbbkjfajlljkemfkgak
- Developer ID
- u6ae5814d3a23a101ac0919df544c45a2
- Developer Email
- [email protected]
- Created
- Jul 10, 2026
- Last Updated (Store)
- Jul 10, 2026
- Last Scraped
- Jul 11, 2026
- Website
- —
- Support URL
- —
Data sourced from the Chrome Web Store · last verified Jul 11, 2026.