A high-speed suite of client-side developer utilities. Format code, minify production bundles, decode JWTs, test regular expressions, and convert timestamps locally in your browser.
Beautify indentation, normalize syntax structure, and format messy source files cleanly.
Format raw HTML tags with clean indentation, preserving comments and attributes.
Beautify CSS selectors, rules, media queries, and declarations with consistent spacing.
Beautify JavaScript/TypeScript code with clean indentation and syntax structure.
Beautify and format JSON data with configurable 2 or 4 space indentation.
Format SQL queries cleanly with uppercase SQL keywords and structured indentation.
Format, beautify, and indent XML documents and RSS/Atom feeds cleanly.
Strip redundant whitespace, remove comments, and reduce payload sizes for production deployment.
Minify HTML markup by removing unnecessary whitespace, comments, and redundant characters.
Minify CSS code by stripping comments, spaces, and redundant characters for fast delivery.
Compress and minify JavaScript code safely for production deployment.
Compress JSON documents by stripping all whitespace and line breaks.
Verify document well-formedness, catch syntax errors, and inspect diagnostic line numbers.
Validate JSON syntax with detailed line numbers, error indicators, and formatting.
Validate XML structure, check well-formedness, and highlight parsing syntax errors.
Test, debug, and validate Regular Expressions in real-time with match highlighting.
Convert characters to HTML entities, Base64, URL percent-encoding, and escaped JSON literals.
Encode special HTML characters and entities for safe embedding in web documents.
Encode URLs and query parameters safely with standard percent-encoding.
Encode plain text, strings, and code snippets into Base64 format locally.
Escape special characters, quotes, and newlines in text for valid JSON strings.
Generate random v4 UUIDs, GUIDs, and unique identifiers in bulk client-side.
Decode JWT tokens, Base64 strings, URL parameters, HTML entities, and unescape JSON characters.
Decode HTML entities and numerical character references back to plain text.
Decode percent-encoded URLs, query strings, and URI components.
Decode Base64 encoded strings and payloads back into human-readable text.
Unescape backslash-escaped JSON strings and literals back to formatted text.
Decode and inspect JSON Web Tokens (JWT) header, payload, and expiration locally.
Convert between Unix epoch timestamps (seconds/ms), ISO 8601 strings, UTC, and local time.
Convert Unix timestamps to human-readable dates, UTC strings, and ISO 8601.
Convert between Unix epoch seconds/milliseconds and calendar dates in any timezone.
Render Markdown, HTML, and CSS in secure, sandboxed visual preview environments.
Live sandboxed previewer for HTML markup with real-time rendering.
Live interactive previewer for testing custom CSS rules, styles, and layouts.
Live split-pane Markdown editor with real-time HTML preview and word count.
Inspect and interactively pan and zoom sanitized SVG graphics and expandable JSON trees.
Inspect, preview, sanitize, and optimize SVG vector images with pan and zoom controls.
Interactive tree-view JSON inspector with collapsible nodes, search, and type indicators.
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Four architectural principles engineered for enterprise security and instant speed.
Your proprietary source code, credentials, SQL queries, and payloads never leave memory. Zero cloud logging, zero remote transmissions.
Zero network latency. Transformations, AST parses, and minifications run at native CPU speed in client web worker threads.
No internet required after initial cache. Run formatters and converters on planes, offline staging servers, or isolated developer networks.
Modern software engineering demands speed, data privacy, and frictionless utility. The Todoal Developer Tools Suite provides a comprehensive, browser-native toolkit engineered specifically for software engineers, frontend architects, API developers, and systems administrators. Whether you need to inspect an API payload with our JSON Formatter, validate syntax schema using the JSON Validator, or strip production bundle bloat with the JavaScript Minifier, every calculation occurs instantly in your local browser sandbox.
Unlike traditional web utilities that forward confidential code snippets, API tokens, and database schemas to third-party servers, Todoal executes all parsing, transformation, and minification locally in your device's memory.
Leveraging modern ECMAScript AST parsers and Web APIs, our tools eliminate network round trips. Decode authentication tokens with the JWT Decoder or generate identifiers with the UUID Generator seamlessly.
Frontend development frequently requires jumping between structural markup, stylesheet optimization, and data serialization. Clean up unformatted DOM trees with our HTML Formatter and test responsive components in real time using the sandboxed HTML Previewer. When preparing stylesheets for production deployment, compare formatted rules from the CSS Formatter against condensed stylesheets generated by our CSS Minifier.
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Everything you need to know about this browser tool and privacy.
Actionable frameworks, neuroscience-backed habit protocols, and focus strategies.
TodoalLearn how to organize your day with a simple system to manage tasks priorities goals and routines while improving productivity
TodoalLooking for Notion alternatives in 2026? Compare the best Notion competitors including Todoal Obsidian ClickUp Evernote and Craft
TodoalLooking for Todoist alternatives in 2026? Compare the best apps like Todoist including Notion TickTick Microsoft To Do and Todoal