Fast, ad-free, private micro-tools powered by client-side WebAssembly & JavaScript. Your confidential tokens, PDF files, colors, and code never leave your device.
Paste JSON, YAML, XML, or CSV to simultaneously generate and synchronize all 4 formats in one screen. 100% offline.
Convert any SQL query into SELECT, INSERT INTO, UPDATE, and DELETE statements simultaneously. 100% offline.
Scans and replaces 60+ API key types (AWS, OpenAI, Stripe, DB URLs, PII) with synthetic mock data for AI prompts.
Visualize regex patterns as interactive railroad diagrams, explain syntax in plain English, and detect ReDoS risks.
Generate Swift Codable, TypeScript + Zod, Python Pydantic v2, Rust Serde, and Go structs simultaneously from JSON.
Unescape serialized CloudWatch logs and stringified JSON into clean, formatted JSON objects.
Bidirectional conversion between JSON and clean 2-space indented YAML configuration files.
Convert CREATE TABLE schemas and SQL statements into realistic JSON mock arrays for test fixtures.
Visually select and delete unwanted pages from confidential PDFs 100% offline in your browser.
Combine multiple PDF files into one consolidated document with custom order. 100% private.
Encrypt and lock sensitive PDF files with password protection directly in your browser. 100% private.
Convert PDF pages to crisp high-DPI JPG or PNG images directly in your browser. 100% private.
Convert and combine multiple JPG, PNG, and WebP images into a single PDF document. 100% offline.
Test regular expressions with real-time match highlighting and plain-English token breakdowns.
Convert cURL commands to JavaScript Fetch, Axios, Python Requests, Go, and Swift URLSession.
Translate cron schedules into plain English and compute upcoming execution timestamps.
Compare two text blocks or code files side-by-side to highlight additions and deletions.
Convert HEX, RGB, HSL, Swift Color(), and match nearest Tailwind CSS 3/4 color classes.
Strip bloated metadata from Figma & Illustrator SVGs and convert to clean React JSX.
Design smooth multi-layered ambient shadows and frosted glass blur effects with CSS tokens.
Compute proportional width and height scaling for 16:9, 4:3, 1:1, and 9:16 social media assets.
Live word and character counts with visual limit progress bars for X/Twitter, LinkedIn, and SEO.
Convert Markdown into formatted rich text ready to paste directly into Google Docs and emails.
Automatically capitalize headlines according to AP, Chicago, and APA editorial style rules.
Transform article titles into clean, URL-safe permalinks for blogs and documentation.
Convert PNG/JPG images to Base64 Data URI strings or decode Base64 into viewable images.
Decodes Header and Payload, inspects claims, checks expiration with live remaining time.
Pretty-print, minify, validate, and repair malformed JSON syntax directly in your browser.
Instantly infers types and generates clean TypeScript interfaces and Zod validation schemas.
Formats SQL keywords, aligns clauses, and standardizes indentation for Postgres, MySQL & SQLite.
Converts comma or tab-delimited spreadsheet data into clean GitHub/Dev.to Markdown tables.
Removes marketing tracking parameters (utm_*, fbclid, gclid) for clean link sharing.
Compare two JSON objects side-by-side. Highlights additions, removals, and changes with key sorting.
Stop jumping between browser tabs. L2Cache captures your clipboard history and offers these exact transforms with ⌘⇧V — 100% offline, on-device AI.