Diff Checker
Compare two texts or two JSON documents line by line or word by word.
Private by design. Your input never leaves this browser. Conversions run locally on your device.
What this tool handles
- Compares by line, by word, or semantically as JSON where key order does not count as a change.
- Side-by-side or unified view.
- Whitespace-only and case-only differences can each be ignored.
- Additions and removals carry a glyph as well as a colour.
Related tools
- Case Converter — Convert text between camelCase, snake_case, kebab-case and six more styles.
- Regex Tester — Test a regular expression against text with highlighted matches and capture groups.
- Convert any format — Pick an input format and an output format and convert between any pair.
- JSON → YAML — Convert JSON to readable YAML with configurable indentation.
- YAML → JSON — Parse YAML and emit pretty-printed JSON.
- JSON → TOML — Convert a JSON object to TOML.