CI/CD tools
A broken pipeline usually traces back to one of a few things: a workflow YAML with an indentation slip, a conditional expression that doesn't evaluate the way you expected, a cron schedule that doesn't mean what its five fields look like it means, or a version bump that should follow from commit messages but currently gets picked by hand. These tools check the YAML and expressions before you push and wait for a run to fail.
The GitHub Actions Workflow Validator and GitLab CI editor validate the two most common pipeline formats, catching rule and include errors the platform only reports after a run starts. The GitHub Actions expression tester evaluates conditions against mock context variables, the only way to check an if: expression without a real workflow run. For scheduling, the Cron expression generator previews runs from five-field syntax while the Jenkins cron generator explains its H hash range, and the Semantic Release Calculator turns commits into the version bump they imply.
6 tools
All CI/CD tools
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GitHub Actions Workflow Validator
Validate GitHub Actions workflows and draft matrix or cron expressions
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GitHub Actions expression tester
Evaluate conditions with mock GitHub Actions context variables
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GitLab CI editor
Format and validate .gitlab-ci.yml with rule and include checking
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Semantic Release Calculator
Calculate semantic version bumps and changelog from conventional commits
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Jenkins cron generator
Build Jenkins cron expressions and explain H hash distribution ranges
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Cron expression generator
Design five-field cron schedules with timezone context and run previews
CI/CD tools FAQ
GitHub only evaluates if: conditions when a workflow actually runs, which is slow for checking logic. The GitHub Actions expression tester evaluates conditions against mock context variables so you can check the result without triggering a workflow run.
H is a hash, not a fixed value: Jenkins picks a value in the given range based on the job name, so builds spread out instead of all firing at once. The Jenkins cron generator builds these expressions and explains the resulting hash distribution range.
With conventional commits, a fix: commit bumps the patch version, feat: bumps minor, and a breaking change bumps major, based on the commit type prefixes since the last release. The Semantic Release Calculator reads commit messages and calculates the resulting version bump and changelog.