ChronoGit
Missed a commit? Backfill it. Going offline? Future‑fill now.
ChronoGit keeps your contribution graph glowing — no scheduling, no hacks. 100% free.

- Unlimited runs
- Up to 365‑day backfill per run
- Up to 365‑day future fill per run
- Custom pattern support
- Private repository support
- GitHub Actions integration
Get started in minutes
Four simple steps to unbreak your streak — future‑fill works instantly.
- 1
Sign in
Authorize with GitHub so we can create your workflow.
- 2
Select repo
Pick where the helper workflow will live.
- 3
Future‑fill or backfill
Trigger the action for the dates you want — now, not scheduled.
- 4
Backfilled
Your graph updates — sit back and watch it glow.
What ChronoGit can do
Backfill, future‑fill now, and even draw tasteful patterns on your contribution heatmap.
Backfill
Recover missed days up to a year in one go.
Future‑fill now
No scheduling. Fill upcoming days immediately.
Patterns
Print fun, symmetric, or custom patterns.
Private & Yours
Runs in your repos via Actions — revoke anytime.
Why developers choose ChronoGit
Purpose‑built for GitHub, privacy‑first, and designed for reliability.
Your repos, your rules
Runs via GitHub Actions in your repository. Delete the workflow to instantly revoke access.
Transparent by default
Readable logs and dry‑run preview so you know exactly what will change before it does.
Smart scheduling
Rate‑limit friendly batches, retries, and window controls to keep your graph consistent.
Free forever
Unlimited runs. Up to 365‑day backfill and future fill per run.