itsjust.tools

A clean scientific calculator. Basic arithmetic, trigonometry, logarithms, function graphing, and more.

Write LaTeX equations with instant KaTeX preview and automatic solving with CAS.

A minimal monthly calendar with event tracking. Add, remove, and organize your events.

A precise countdown timer with preset durations, custom time input, and circular progress ring with notifications.

Cron expression builder and validator. Generate, test, and understand cron schedules.

Write Markdown with a live rendered preview, GitHub-flavored syntax, and one-click export to HTML.

A distraction-free notepad with rich text support. Write, edit, and export your notes.

Convert text between 16 case modes — lowercase, UPPERCASE, Title Case, camelCase, snake_case, kebab-case, and more. All client-side, privacy-first.

Generate .gitignore files from 50+ templates — combine languages, frameworks, IDEs, and OS rules. All client-side, privacy-first.

Encode and decode text or files to/from Base64 entirely in the browser, with live preview, validation, and multiple export options.

Generate smooth organic blob shapes with real-time controls. Tweak points, smoothness, randomness, and colors.

Pick colors, get hex/rgb/hsl/oklch values, build color schemes, and check WCAG contrast.

Convert between YAML, JSON, and TOML formats instantly. Paste your config, pick source and target format, and get clean output.

Build and preview CSS filter chains visually. Combine blur, brightness, contrast, and more — see the result in real time.

Convert between CSV and JSON with live table preview, delimiter detection, and export.

Convert any file or text into a data URI. Paste, upload, or type to get a data: URL — all client-side, privacy-first.

View and compare text differences side-by-side. Paste two versions of any text and see exactly what changed, added, or removed.

Generate cryptographic hashes (MD5, SHA-1, SHA-256, SHA-384, SHA-512) and HMACs from text or files, entirely client-side and privacy-first.

Searchable reference of all HTTP status codes grouped by category with descriptions and copy-to-clipboard.

Format, validate, and minify JSON with syntax highlighting. Sort keys, collapse empties, diff, and export.

Decode and inspect JSON Web Tokens (JWT) client-side: view header, payload, and signature, with formatted claims and expiry warnings.

Generate secure passwords and passphrases with configurable length, symbols, and strength.

Format and validate Python code with syntax highlighting, PEP 8 compliance, auto-indentation, and code analysis.

Generate QR codes from text or URLs. Camera scanning, logo overlay, custom colors, and multiple export formats.

An interactive regular expression builder, tester, and visualizer with live match highlighting and cheat sheet.

Live regex builder and tester with real-time match highlighting, flags, capture groups, replace mode, and pattern explanation.

Format, beautify, and lint SQL queries. Supports MySQL, PostgreSQL, SQLite, BigQuery, and more.

Visual SVG editor with bi-directional code sync. Draw shapes, edit attributes, drag to reposition, and export clean SVG.

Generate Docker Compose, systemd units, NGINX configs, and WireGuard configurations.

Build, edit, and export systemd unit files (services, timers, sockets, mount points). Visual form-based editor with proper syntax output.

Encode and decode URLs and query strings with percent-encoding, plus live query-parameter parsing.

Generate UUIDs (v1, v4, v7) in bulk with formatting options for developers.

WCAG AA/AAA compliance checker for color contrast ratios. Test accessibility for normal and large text with live contrast previews.

Simulate vision deficiencies (protanopia, deuteranopia, tritanopia, cataracts) for accessibility testing.

Visually build CSS keyframe animations with a live preview, easing curves, and exportable code.

Generate geometric shapes and patterns with customizable parameters, real-time preview, and export options.