Need to find what changed between two versions of a document, contract, or code file? Convertly.ng's free Text Diff Checker compares two texts side by side and highlights every addition, deletion, and change — instantly, in your browser. No software, no account needed.
What Is a Text Diff Checker?
A diff checker (short for "difference checker") compares two versions of a text and shows exactly what has changed. Added content is highlighted in green, deleted content in red, and unchanged content is shown normally. This makes it instantly clear what was added, removed, or modified between versions.
When Do You Need a Text Diff Checker?
- Contracts and legal documents — Compare the original and revised versions of an agreement to spot any changes
- Code review — Compare two versions of a script or configuration file to see what changed
- Academic work — Compare drafts of an essay or research paper between revisions
- Content editing — See exactly what your editor changed in your article or report
- Data validation — Compare two CSV, JSON, or text exports to find discrepancies
How to Compare Two Texts on Convertly.ng
- Open the Text Diff Checker — Visit Convertly.ng Text Diff.
- Paste the original text — Enter the first (older) version of your text in the left panel.
- Paste the updated text — Enter the second (newer) version in the right panel.
- Click Compare — The tool highlights all differences between the two texts.
- Review the changes — Green highlights show additions, red shows deletions.
⚖️ Essential for Contract Reviews in Nigeria
When a contract is revised, use the diff checker to compare the original and revised versions before signing. This is especially important for NDAs, service agreements, and employment contracts — ensuring no terms were quietly changed between versions.
Related Text Tools
- Word Count — Count words in either version of your text
- JSON Formatter — Format JSON before comparing two API responses
- Case Converter — Normalise case before comparing texts
Also read: Free Word Count Tool | Free JSON Formatter
Frequently Asked Questions
Can it compare very long documents?
Yes — the tool can compare large amounts of text. Paste entire contracts, articles, or code files for comparison.
Does it compare line by line or word by word?
The diff checker compares line by line, highlighting changed lines. Within changed lines, word-level differences are also shown.
Is my text stored on your servers?
No — text comparison runs entirely in your browser. No data is uploaded or stored.
Is the Text Diff Checker free?
Yes — completely free with no account required.
Find every change between two texts instantly
Free text diff checker — compare documents, contracts, and code side by side.
Compare Texts Free →