$ ls ~/tools
Tools
A set of fast, genuinely useful little tools — converters, generators and quick fixes. Everything runs in your browser; nothing you type ever leaves this page.
Base64 Encode / Decode
Encode & decode Base64 — Unicode & URL-safe, file-to-data-URI, plus a JWT decoder, image preview, hex view and gzip. Nothing leaves your browser.
Regex Tester
Test regex live — highlighted matches, capture groups, a replace preview, plain-English explainer and a pattern library, all in your browser.
Unix Timestamp Converter
Convert epoch ↔ human date — ISO 8601, UTC, relative, a multi-timezone panel, batch mode, natural-language input and cron next-runs.
URL Slug Generator
Turn any title into a clean, SEO-safe URL slug — with non-Latin transliteration, bulk mode, collision numbering and a permalink preview.
.htaccess Redirect Generator
Generate 301/302 redirects for Apache & Nginx — bulk CSV import, force-HTTPS/www, WordPress hardening & caching blocks. A migration staple.
Color Converter
Convert HEX ⇄ RGB ⇄ HSL ⇄ OKLCH ⇄ LAB with a live WCAG contrast checker, tints/shades ramp and color-blindness preview.
CSS Box-Shadow Generator
Dial in a box-shadow visually — a one-slider smooth-shadow generator, Material & neumorphism presets, drop-shadow mode, CSS or Tailwind.
Lorem Ipsum Generator
Generate placeholder text in 7 themes (Latin, tech, corporate, Bengali & more) — plain, HTML, Markdown or a full content scaffold. Seedable.
UUID Generator
Generate UUID v1/v4/v5/v7, ULID & NanoID in bulk — plus an inspect/decode tab that extracts the embedded timestamp. All in your browser.
Markdown to HTML
Write Markdown, get live-preview HTML — GFM tables, task lists, highlighted code, auto TOC, copy-rich & .html export, all safely escaped.
Image Resizer & Compressor
Resize, crop, rotate & compress JPG/PNG/WebP/AVIF in your browser — batch, social-size presets, target file size. Nothing uploaded.
Image to WebP Converter
Convert images to WebP/AVIF (or back to JPG/PNG) — batch, per-image quality, ZIP download and a copy-ready <picture> snippet.
Favicon Generator
Turn a logo, text or emoji into a complete favicon pack — every size, an SVG favicon, maskable safe-zone and ready-to-paste HTML.
Color Palette Extractor
Pull a beautiful color palette from any image — drag to reorder, check contrast, simulate color-blindness, export CSS/Tailwind/.gpl.
Social Share Preview
Preview how your page looks shared on Google, Facebook, X, LinkedIn, Discord, Slack & WhatsApp — plus Open Graph tags and JSON-LD schema.
Password Generator
Strong, random passwords & memorable passphrases with full control and a live strength meter.
QR Code Generator
Turn text, links, WiFi, vCard, geo & more into a scannable QR — gradient fill, custom eyes, a caption frame, batch mode, PNG or SVG.
Word Counter
Live word, character & reading-time counts, keyword density, readability scores (Flesch), sentence rhythm and SEO length checks.
JSON Formatter & Validator
Format, minify & validate JSON with exact error locations, a tree view, JSONPath queries, convert to CSV/YAML/TS and a two-file compare.
Diff Checker
Compare two texts — line, word and character-level diffs, jump-to-change minimap, drag-drop files and a .patch export. Nothing leaves your browser.
CSS Gradient Generator
Design linear, radial, conic & mesh gradients visually — OKLCH interpolation, drag the stops, export CSS/Tailwind/SCSS/@keyframes.
Invoice Generator
Create a clean invoice, estimate or quote — per-line tax, balance due, saved clients & templates, JSON export, save as PDF. No signup.
$ Every tool on this page is hand-coded — no frameworks, no libraries. Your site gets the same care.
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