20 tools · local-first
Utility belt / v1.0Built for the work

Small tools.
Serious craft.

Twenty sharp, private utilities for the moments that break your flow. No accounts. No uploads. No nonsense.

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01 Private by default 02 Works offline 03 Zero sign-up
JSON Formatter instrument Instrument 01 / Developer Turn chaos
into structure. Open JSON Formatter ↗
09Resize 04Secure
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Pick your discipline.

05 categories
Fast lane

Most reached for.

06 essentials
T/T
The promise

Your files stay yours.
Your flow stays unbroken.

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20sharp tools

Diff Checker

🔒 Runs entirely in your browser — your data never leaves this tab
Local processorReady for input

About Diff Checker

Compare two blocks of text and see exactly what changed line by line. Added and removed lines highlighted instantly. Free online diff tool.

How to use Diff Checker

  1. Enter or select the source material in the tool above.
  2. Choose the available options for the result you need.
  3. Run the tool, review the result, then copy or download it.

Example

Paste an original paragraph and a revised paragraph to highlight added and removed lines.

Frequently asked questions

Is Diff Checker free to use?

Yes. Diff Checker is free, requires no account, and has no usage limit imposed by TipityTools.

Does Diff Checker upload my data?

No. The calculation runs locally in your browser. TipityTools does not send your tool input or generated output to its server.

Can I use Diff Checker offline?

Yes, after the application files have been cached by your browser. Third-party advertising remains network-only.