Purpose-built utilities for generating, inspecting, calculating, testing, and managing developer data. Open the tool you need, use it locally, and keep moving.
JWT decode here, GraphQL explore there, SSH keygen somewhere else, clipboard snippets in another app? Not anymore.
Standalone tools for generating, inspecting, calculating, testing, or managing. Open directly or launch from relevant editor content.
Specialized views that activate when you paste content. They understand your data structure.
Decode, verify signatures with public keys or secrets, and sign new tokens - all securely within your browser. No tokens ever leave your machine.
Live pattern matching with detailed match explanations, capture group visualization, and flag toggles. Stop guessing if your regex works.
Make HTTP requests directly from your browser. Perfect for testing CORS-enabled APIs, webhooks, or local dev servers.
Secure random passwords
v1 and v4 UUIDs
Encode/decode data
MD5, SHA-256, SHA-512
Deconstruct any URL
Ed25519, RSA, ECDSA
Offline authenticator
Binary inspector
Inspect tokens, keys, bytes, secrets, and integrity checks without sending sensitive material anywhere.
Generate Ed25519, RSA, and ECDSA key pairs, inspect fingerprints, derive public keys, and validate matching pairs offline.
Create and verify time-based one-time passwords with otpauth URI import and SHA1/256/512 support.
Inspect raw bytes with decoded text, entropy analysis, byte distribution stats, and binary-friendly navigation.
Keep frequently used shell commands, scripts, snippets, and operational notes in a searchable local vault.
Manage clipboard history, save reusable snippets, and organize temporary text assets inside the workspace.
Generate and decode QR codes for URLs, WiFi credentials, contacts, and other structured payloads locally.
Validate GitHub, Stripe, Slack, Twilio, Shopify, and Standard Webhooks signatures locally. Inspect canonical payloads, replay diagnostics, and generate safe redacted reports — no secrets leave your browser.
Detect API keys, tokens, private keys, and credentials in logs, diffs, and config files. Redacts findings and generates safe reports — entirely offline.
Explore APIs, queries, metrics, and network-adjacent data without leaving the browser workspace.
Explore schemas and execute GraphQL queries, mutations, and subscriptions from a focused playground.
Visualize and analyze OpenMetrics or Prometheus exposition data with metric browsing and query-focused inspection.
Look up IP address details, network metadata, geolocation, and ISP information from a dedicated utility.
Generate disposable email addresses for testing sign-up flows, verification codes, and privacy-sensitive workflows.
Convert numbers, encodings, cases, colors, dates, text, and hashes from one compact utility surface.
Create synthetic user profiles with names, addresses, emails, bios, and test-friendly identity data.
Quick visual, writing, and productivity tools that usually end up scattered across separate browser tabs.
Edit Mermaid diagrams with live preview and quick templates for flowcharts, sequences, timelines, and more.
Create fast sketches, whiteboard diagrams, and shape-based notes without switching to a design tool.
Search emojis and inspect Unicode, HTML, hex, and symbol metadata for copy, UI, and encoding work.
Keep focused work and break sessions beside your scratch workspace instead of opening another timer app.
Convert, verify, and transform data between formats.
Visually transform complex JSON structures. Define mapping rules between schemas with an intuitive drag-and-drop interface.
Encode and decode data using Standard, URL-safe, or MIME Base64 formats. Handles binary files too.
Generate and verify file integrity. Calculates MD5, SHA-1, SHA-256, and SHA-512 hashes locally.
Deconstruct any URL into components. Analyze schemes, hosts, query parameters, and identify security issues.
Parse, format, and convert dates across timezones. Debug timestamp issues with epoch conversion.
Analyze text with word count, character count, reading time, and readability scores.
Generate secure credentials, unique identifiers, and placeholder content on demand.
Create strong, random passwords with customizable length and complexity. Includes history and strength indicator.
Generate universally unique identifiers in v1 (timestamp) and v4 (random) formats. Bulk generation supported.
Generate placeholder text with customizable options for paragraphs, sentences, or words.
Create and export colour palettes with a live UI preview. Export to CSS, Tailwind, or JSON.
Build cron expressions with a natural language interface. See when your schedule will next run.
Math expression evaluator with variable support, unit conversions, and history. Powered by math.js.
Tablets are just one part of Scratch Tabs. Discover the full platform.
Monaco editor, Smart Views for JSON, CSV, OpenAPI, HAR, PEM, dotenv, YAML, TOML, SVG, logs, Split View, Diff Engine, and workspace management.
See what's new, what's improved, and what's coming next in Scratch Tabs.
