Useful tools, without the upload

Fast, private utilities that run entirely inside your browser. Choose a category or start with a popular tool.

Calculators

Practical number and date calculators with instant browser-local results.

Convert common measurements accurately without sending values anywhere.

Count, clean and transform text privately in your browser.

Small browser-local helpers for common development tasks.

Estimate common personal and business finance figures with transparent formulas.

Solve frequently searched arithmetic, algebra and statistics problems locally.

Crop and resize identity photos locally to clearly stated country presets.

Check identifier syntax and checksums locally without querying private records.

Private image utilities with no uploads.