YAML Diff Checker
Paste two versions of YAML to compare additions, removals and edited lines with YAML syntax highlighting. The diff runs locally in your browser.
Testo originale
Testo modificato
YAML syntax locked
This page automatically highlights YAML tokens, so you do not need to pick a language before comparing files.
Private local compare
The diff runs in your browser. Source code, API payloads and configuration files are not uploaded to a server.
Split or unified review
Use split view for side-by-side review, unified view for compact patches, and hide unchanged lines for large files.
Compare YAML files online
This YAML diff checker is built for developers who need a fast, private way to compare code and configuration changes. Paste two versions, run the comparison, and review additions, removals and inline edits with YAML syntax highlighting already enabled.
Paste or upload the original YAML file on the left.
Paste or upload the changed YAML file on the right.
Compare the result in split or unified view, then hide unchanged lines when you only need the edited regions.
Private browser-based YAML comparison
The diff runs locally in your browser, which keeps source code, API responses, secrets and configuration files on your device. One recent session may be stored in your browser storage for restore, and you can clear it from the tool at any time.
Common YAML diff workflows
Review indentation-sensitive setting changes.
Check lists, maps and anchors before deploy.
YAML syntax highlighting
Highlighting is locked to YAML on this page, so the language selector stays out of the way. The parser focuses on tokens such as maps, lists, anchors, scalars while the diff engine highlights the actual text changes.
.yml, .yaml
Reference: YAML specification
YAML diff checker FAQ
What is a YAML diff checker?
A YAML diff checker compares two versions of YAML content and highlights added, removed and edited lines. This page locks syntax highlighting to YAML, so language tokens are easier to scan while reviewing changes.
Does this YAML diff tool upload my code?
No. The comparison runs in your browser. Your YAML files are not uploaded to a server when you click Compare.
Which YAML file types can I compare?
You can paste or upload plain-text files such as .yml, .yaml. Any text file can be compared, but this page highlights YAML syntax automatically.
Can I compare large YAML files?
Yes. Large comparisons run in a background worker so the browser stays responsive. Very large files may still take a few seconds on your device.