# Tooly — Free Online Tools for Developers, Designers & Creators > https://tooly.sh ## About Tooly is a free, privacy-first collection of browser-based utility tools built by **Fersoft Technologies LLC**. All tools run entirely in the user's browser — no data is ever uploaded or stored on any server. No account or sign-up is required. ## Key Facts - **Owner**: Fersoft Technologies LLC - **Website**: https://tooly.sh - **Category**: Online Tools / Developer Utilities / Productivity - **Pricing**: Free (all tools) - **Privacy**: 100% client-side — nothing leaves the browser - **Languages**: English ## Tools Available (24 total) - **Invoice Generator** (/invoice-generator) — Build and customize professional invoices with client info, line items, taxes, and currency. Export to PDF instantly. Your last invoice is auto-saved. - **JSON Viewer** (/json-viewer) — A powerful JSON tool with syntax highlighting, formatting, minifying, and a side-by-side diff comparator. Open multiple JSON documents in tabs. - **Base64 Encoder / Decoder** (/base64) — Convert any text or file to Base64 encoding and back. Supports drag-and-drop for binary files. Last input is auto-saved. - **iFrame Tester** (/iframe-tester) — Test how any website looks inside an iframe. Switch between mobile, tablet, and desktop presets or set custom dimensions. - **HTML Viewer** (/html-viewer) — A live HTML editor with instant sandboxed preview. Split-pane layout lets you write and see results simultaneously. - **Image Editor** (/image-editor) — Edit images directly in your browser. Resize by pixels or percentage, compress quality, crop, flip, rotate, and export as JPEG, PNG or WebP. - **PDF Editor** (/pdf-editor) — Upload a PDF to add text annotations, reorder or delete pages, and merge multiple PDFs. Download the modified file instantly. - **Regex Tester** (/regex-tester) — Write a regex pattern and instantly see matches highlighted in your test string. Supports flags, capture groups, and replace mode. - **Markdown Editor** (/markdown-editor) — A split-pane Markdown editor with instant rendered preview. Supports GFM syntax, tables, code blocks, and HTML export. - **JWT Decoder** (/jwt-decoder) — Paste a JSON Web Token to decode its header, payload, and verify the signature structure. Completely offline — nothing leaves your browser. - **Color Palette Generator** (/color-palette) — Pick a base color and generate complementary, analogous, triadic, or shades palettes. Copy colors as HEX, RGB, HSL, or CSS custom properties. - **Timestamp Converter** (/timestamp-converter) — Convert between Unix timestamps (seconds/ms) and human-readable dates. Shows multiple timezone formats and relative time. - **Hash Generator** (/hash-generator) — Hash any text input using SHA-1, SHA-256, SHA-384, or SHA-512 via the browser's native Web Crypto API. Nothing sent to any server. - **Password Generator** (/password-generator) — Create cryptographically random passwords with custom length, character sets, and strength indicators. 100% client-side. - **QR Code Generator** (/qr-generator) — Create QR codes from any URL, text, email, or phone number. Customize size and download as PNG or SVG instantly. - **CSS Gradient Generator** (/css-gradient) — Create linear and radial CSS gradients with a visual editor. Add color stops, adjust angles, and copy the generated CSS instantly. - **SVG Viewer** (/svg-viewer) — Instantly render SVG markup in the browser. View cleaned source, adjust background, and download the SVG file. - **Text Diff** (/text-diff) — Paste two versions of any text to see a side-by-side or unified diff with added/removed lines highlighted in green and red. - **DNS Checker** (/dns-checker) — Instantly query DNS records for any domain or IP. Supports A, AAAA, CNAME, MX, NS, TXT, SOA, CAA, DS, DNSKEY, PTR, and SRV record types. Results are fetched server-side for accurate real-time data. - **SSL Checker** (/ssl-checker) — Check the SSL/TLS certificate of any domain: expiry date, issuer, certificate authority, SANs, and validity status. Uses certificate transparency logs for accurate results. - **QR Code Scanner** (/qr-scanner) — Decode QR codes instantly using your device camera or by uploading an image. Works entirely in your browser using the native BarcodeDetector API — nothing is sent to any server. - **Domain Checker** (/domain-checker) — Instantly check domain availability for a name across the most popular TLDs: .com, .net, .org, .io, .app, .ai, .co, .dev, .sh, .me and more. Uses live RDAP lookups. - **Word Counter** (/word-counter) — Paste or type any text to get instant counts for words, characters (with and without spaces), sentences, paragraphs, and estimated reading and speaking time. - **Notepad** (/notepad) — A clean browser-based notepad with full undo/redo history, copy, select all, and print support. Your note is automatically saved to localStorage. ## Categories - **Developer**: JSON Viewer, Base64 Encoder/Decoder, HTML Viewer, iFrame Tester, Regex Tester, Markdown Editor, JWT Decoder, Timestamp Converter, Text Diff - **Security**: JWT Decoder, Hash Generator, Password Generator - **Design**: Color Palette Generator, CSS Gradient Generator, SVG Viewer, QR Code Generator - **Business**: Invoice Generator (PDF export) - **Documents**: PDF Editor - **Media**: Image Editor - **Network**: DNS Checker, SSL Checker, Domain Checker ## Sitemap https://tooly.sh/sitemap.xml ## Contact For information about Tooly, visit https://tooly.sh.