Trunk Merge
Never break your build again
Trunk Merge launched on July 19, 2022 with 103 votes, #303 of 2,916 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 4 years on.
What it does
Trunk Merge is an intelligent service that orchestrates merging pull requests to maintain a repository of code that always passes tests.
The enterprise merge queue for teams that ship fast. Test unrelated changes in parallel lanes, batch compatible PRs into one CI run, and keep flaky tests from evicting healthy PRs. Caseware cut time to merge from 6 hours to 90 minutes on day one.
Keep main green, cut CI costs up to 90 percent, and give engineers back the hours they lose waiting. More PRs, more logical conflicts, and flaky tests now overwhelm the merge step, whether you merge by hand or run a single-lane queue. Agents open more PRs and churn code more aggressively. That drives logical conflicts, where two PRs merge cleanly but still break main, and pushes you to need a merge queue earlier in your repo's growth. A flaky test kicks a healthy PR out of the queue. It goes to the back of the line, and every PR behind it re-runs CI. GitHub's merge queue tests unrelated changes one at a time. Your frontend PR waits behind an API change it can't conflict with. Your frontend…from trunk.io
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Trunk – One linter to run them all2021 · trunk.io · ▲38The CI acceleration platform that detects flaky tests and speeds up merges. Used by Brex, Ramp, Supabase, and Zillow.
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Merge Integrations Management2023 · merge.dev · ▲606Gain full control and visibility over your integrations
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