Validate, auto-correct, format, and explore JSON with an interactive tree viewer

Decode and inspect JWT tokens - view header, payload, and verify signatures

Encode and decode Base64 strings with support for URL-safe encoding

Build, visualize, and understand cron schedule expressions

Generate UUIDs, passwords, secret keys, hex strings, and random numbers

Create minimal text logos and export as SVG, PNG, or favicon in any size

Create professional invoices with EU/US standards, line items, tax calculations, and PDF export

Build markdown tables visually with inline editing, CSV paste support, and aligned output

Create Open Graph images for social media with multiple layouts, sizes, and customizable themes

Generate config files for popular tools - tsconfig, ESLint, Prettier, Docker Compose, nginx, and more

Generate llms.txt files from any website or docs

Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes for text or files

Generate htpasswd password hashes for basic auth - bcrypt, SHA-256, SHA-512, MD5, SSHA

Parse and convert Unix timestamps, ISO 8601 / RFC 3339, and RFC 2822 datetime formats

Live clocks for multiple timezones and a visual overlap finder to schedule meetings across time zones

Compare two or more texts side by side with line-by-line diff highlighting

Write and preview markdown with toolbar shortcuts and live rendering

Create and share text snippets with short, shareable links

Build themes with CSS variable tokens, preset themes, live dashboard preview, and color builder

Test your keyboard with a visual key tester supporting multiple layouts and sizes

Test your microphone, view audio levels and device info, and record clips

Test your webcam, view resolution and device info, and capture frames

Connect to WebSocket servers, send and receive messages, and inspect traffic

Test push notifications, generate VAPID keys, subscribe to push services, and inspect incoming notifications

Inspect service workers, view registration state, scope, and script. Browse and manage Cache Storage.

View your public IP address, geolocation, and network info. Also available via curl.

Look up DNS records for any domain - A, AAAA, MX, CNAME, TXT, NS, and more

Check Open Graph images and meta tags for any URL

Check SSL/TLS certificates for any domain - view certificate chain, expiry dates, and security details

Upload, manage, and share files securely with your account

Live crypto prices, gold, exchange rates, currency converter, and market data with sparkline charts

Connect to Elasticsearch clusters, browse indices, run queries, manage documents, and monitor health

Open and explore SQLite databases in the browser - browse tables, run SQL queries, sort, filter, and export data

View, edit, search, and export CSV files with data science split presets for train/test data

Play local or remote video files with metadata inspection, custom controls, and media info

Extract video metadata, compress videos, and convert between formats

Convert and resize images in the browser - PNG, JPEG, WebP, AVIF with quality control and aspect-ratio locking

Plan and visualize with multiple views, day selection, markers for milestones and epics, and timeline summaries

Focus timer with customizable work/break durations, daily goals, progress tracking, and browser notifications