UUID Studio

UUID Studio

Text Diff

Line-by-line diff for plain text, configs, and logs.

  • đź”’ No data stored or uploaded
  • ⚡ 100% client-side
  • 🆓 Free, no account
Click Convert when ready

Override only when Auto cannot parse your paste. Changing this loads a matching sample into Input — click Convert to run. Use Load sample to cycle every format example.

All conversions

Read-only representations of the same 16 bytes. Every textual form is listed here, not in “Prefer format”.

Paste two values: if both sides are valid JSON, a structural diff appears; otherwise UUID / bytes are compared when both decode to the same format.

A
B

Create or edit JSON here (syntax colors), then format, validate, or convert - same as MongoDB $binary UUID blobs on the Convert tab once detected.

New document

Hash, HMAC, AES-GCM/CBC + RSA-OAEP, codecs, JWT decoding, UUID v4, and secure random - all client-side. JWTs use Base64URL (three segments), not a single MIME Base64 block - use Decode JWT below, not raw Base64 decode.

Examples

  • Text A 
    line one
line two
line three
  • Text B 
    line one
line TWO
line three
line four

About Text Diff

Our JSON Compare tool understands JSON structure specifically - key order, nested objects, types. Most files aren't JSON: nginx configs, .env files, log excerpts, a function before and after a refactor. Those still need a line-by-line diff, just without any JSON-aware parsing getting in the way.

Paste two versions of a text block and get back every line marked as added, removed, or unchanged, computed with a standard longest-common-subsequence line diff - the same underlying idea `diff` and most "compare" features in editors use.

Because it's line-based, moving a block of text around registers as a removal plus an addition rather than a "move" - which is the same tradeoff most line-diff tools make, in exchange for being simple and predictable.

FAQ

Does this diff word-by-word or character-by-character?
No, it compares whole lines. A single changed character marks the entire line as different - use it to spot which lines changed, then look within the line for the specific edit.
Should I use this or JSON Compare for JSON files?
Use JSON Compare for JSON - it understands structure and key semantics. This tool is for everything that isn't JSON, or when you specifically want a literal line-by-line view.