Vaynerov · Tools
The Toolbox
Twenty-five small, sharp utilities for files, text, code, and design — running entirely in your browser. Nothing you paste or drop ever leaves your device.
100% CLIENT-SIDE · NOTHING IS UPLOADED
Files
4 toolsCompress, convert, and checksum your own files — streamed locally, zero upload.
Gzip compress & decompress
Shrink files with gzip or unpack .gz archives — streamed in your browser, nothing uploaded.
ZIP archiver
Bundle files into a ZIP or extract one — a real archiver running locally, no upload, no size games.
Image converter
Convert images between PNG, JPEG, and WebP with quality control — pixels never leave your device.
File hash
Verify downloads with SHA-256, SHA-1, and more — checksums computed locally, even for huge files.
Text
8 toolsFormat, encode, diff, and count — the everyday text jobs, instant and offline.
JSON formatter
Pretty-print, minify, and validate JSON with exact line-and-column errors — instant and local.
Base64 encode & decode
Encode text or files to Base64 and back — Unicode-safe, URL-safe variant included, fully offline.
URL encode & decode
Percent-encode and decode URLs, query strings, and components — see exactly what your links carry.
Text diff
Compare two texts line by line with word-level highlights and a unified patch you can apply.
Case converter
Flip text between camelCase, snake_case, kebab-case, Title Case, and more — acronyms handled.
Word counter
Words, characters, sentences, and reading time — counted the way real languages actually segment.
Lorem ipsum generator
Placeholder paragraphs, sentences, or words on demand — seeded, so the same setup repeats exactly.
CSV ⇄ JSON
Convert CSV to JSON and back with a real RFC 4180 parser — quotes, commas, and edge cases intact.
Code
8 toolsDecode tokens, test regex, read cron, mint IDs — debugging sidekicks that stay warm.
Regex tester
Test regular expressions live with match highlights, group inspection, and a runaway-pattern guard.
JWT decoder
Decode JWT header and claims, check expiry live, and verify HS256 signatures — token stays local.
Timestamp converter
Turn Unix timestamps into readable dates and back — any timezone, seconds or milliseconds, ISO 8601.
UUID generator
Generate UUID v4, sortable v7, and nanoid — one or ten thousand, straight from your browser's crypto.
Cron parser
Read a cron expression in plain words and see its next runs — with the dom/dow rule done right.
Hash generator
SHA-256, SHA-1, SHA-384, SHA-512, and HMAC for any text — computed as you type, never sent anywhere.
Password generator
Strong random passwords and passphrases with honest entropy math — generated locally, never stored.
Markdown preview
Write Markdown, see clean HTML instantly — rendered side by side with strict XSS-safe output.
Design
5 toolsColors, gradients, shadows, and QR codes — visual builders with copy-ready CSS.
Color converter
Translate colors across HEX, RGB, HSL, and OKLCH with full precision — plus live WCAG contrast.
Gradient generator
Design linear, radial, and conic gradients with draggable stops — copy production-ready CSS.
Box-shadow generator
Layer soft, sharp, and inset shadows on a live preview — export as CSS or a Tailwind class.
QR code generator
QR codes for links, text, and Wi-Fi from a hand-rolled encoder — download as SVG or PNG.
Palette extractor
Drop an image, get its dominant colors as a working palette — hex and OKLCH, ready for CSS vars.