Free Online Tools for Everyone

Format, beautify, validate and minify JSON with instant error checking.

Encode text to Base64 or decode it back — UTF-8 safe, instant.

Generate cryptographically secure UUID v4 identifiers, in bulk.

Convert Unix timestamps to dates and back, with a live epoch clock.

Percent-encode or decode URLs and query parameters correctly.

Generate MD5, SHA-1 and SHA-256 hashes from any text instantly.

Live word, character, sentence and reading-time counts as you type.

Test regex patterns with live highlighting and capture groups.

Convert colors between HEX, RGB and HSL with live preview.

Compare two texts and see added/removed lines highlighted.

Generate strong random passwords with custom length and characters.

Create QR codes with live preview and PNG download — no watermark.

Your exact age in years, months, days — plus next-birthday countdown.

X% of a number, what percent X is of Y, and percentage change.

Find the days between two dates, or add/subtract days, weeks, months and years.

Monthly payment and total interest for a fixed-rate loan.

Length, weight, temperature, area, volume and speed conversions.

Convert text to UPPER, lower, Title, camelCase, snake_case and more.

Random numbers in any range — bulk, unique draws, sorting.

Compress JPG/PNG/WebP images locally — no upload, no limits.

Convert PNG images to JPG locally, with batch support.

Convert JPG images to lossless PNG locally, batch supported.

Convert WebP images to universally compatible JPG, locally.

Convert iPhone HEIC photos to JPG — private, on your device.

Resize images by pixel width or percent — aspect ratio kept.

Shrink JPG/JPEG files with adjustable quality — no upload.

Compress PNGs via palette quantization — transparency preserved.

Rasterize SVG vectors to PNG/JPG at any resolution, locally.

Shrink animated GIFs: colors, scale, frame-drop — no upload.

Categorized AI prompts for students — one-click copy, ready to use.

Categorized AI prompts for teachers — one-click copy, ready to use.

Remove duplicate lines, blank lines and extra spaces — all in one tool.

Convert Simplified/Traditional Chinese with regional standard support.

Chinese to Pinyin, 4 formats, smart multi-reading detection.

Decode a QR code from an uploaded image — local, no app needed.

Generate robots.txt — presets for AI crawlers, custom paths, sitemap.

Convert numeric amounts to Chinese uppercase currency format.

Convert a numeric amount into the words format required on a check.