Browse lightweight tools

Use the search and category filters to find tools that run directly in your browser.

Only published tools with real utility and finished content appear here.

More details

Use the search and category filters to find tools that run directly in your browser.

Only published tools with real utility and finished content appear here.

image-tools

Paste SVG markup or upload an SVG file, preview it, and export a PNG directly in the browser.

developer-tools

Format, minify, and validate JSON in the browser with clear feedback and one-click copy.

developer-tools

Encode plain text to Base64 or decode Base64 back to text with quick copy actions.

color-tools

Convert hex colors to RGB or RGBA and see a live swatch while you work.

text-tools

Count words, characters, spaces, lines, and paragraphs with a live update as you type.

marketing-tools

Compare two variants using visitors and conversions to estimate uplift, z-score, p-value, and significance.

marketing-tools

Estimate the required sample size per variant from baseline rate, minimum detectable effect, confidence, and power.

marketing-tools

Compare three or more variants by visitors and conversions, review rates, and identify the current leader.

text-tools

Compare two text blocks in line mode or word mode with whitespace and case toggles.

math-converters

Convert Unix seconds, Unix milliseconds, and readable datetimes with UTC and local time toggles.