Toolkit

Open or drop Mermaid files to view diagrams, zoom in, and edit their source locally.

Quick whiteboard for doodles, wireframes, and arrows — draw in the browser and export a PNG.

Analyse password length, variety, and predictable patterns entirely locally.

Parse links and flag credentials, lookalikes, redirects, unusual ports, and other tricks locally.

Inspect EXIF, GPS, device, and text metadata, then remove it by local re-encoding.

Review local privacy signals, permission states, storage, and fingerprinting surface.

Build a Content Security Policy and flag risky directives entirely locally.

Inspect local X.509 certificates, validity, usages, SANs, and fingerprints.

Decode QR codes and common barcodes from images or a camera without uploading them.

Format or compact Standard SQL, DB2, N1QL, and PL/SQL entirely locally.

Format, validate, or minify XML and convert between XML and JSON locally.

Infer nested TypeScript interfaces, arrays, unions, and optional fields from JSON.

Parse, edit, reorder, and rebuild duplicate-safe URL query parameters locally.

Sort, deduplicate, shuffle, reverse, number, trim, and clean lines locally.

Design gradients and box shadows with live previews and copy-ready CSS.

Build a five-field cron schedule visually and preview its next run times.

Generate Code 128, EAN, UPC, Code 39, ITF-14, and Codabar locally.

Format or minify frontend code locally with syntax-aware parsers.

Crop, resize, and convert images to PNG, JPEG, WebP, or supported AVIF locally.

Place two or four pages per sheet, or reorder pages for booklet printing locally.

Check PDF structure and rebuild a verified compatibility copy locally with WebAssembly.

Add AES-256 open-password protection or unlock an accessible PDF entirely in your browser.

Burn sensitive areas into flattened pages and verify hidden PDF structures are removed locally.

Preflight PDF tags, language, titles, figures, fields, and links locally without claiming certification.

Recognise English printed text and create a searchable PDF locally with self-hosted WebAssembly.

Recover original embedded raster images from selected PDF pages locally without rendering page screenshots.

Recover embedded TrueType font programs from selected PDF pages locally with licensing and subset warnings.

Export selected PDF pages as PNG or JPEG images with local PDF.js rendering.

Number all or selected PDF pages with custom format, position, size, and margins.

Apply text or image watermarks over or behind selected PDF pages locally.

Adjust visible PDF page boundaries locally without rasterising or deleting content.

Capture, rotate, crop, and clean up page images before local PDF export.

Detect and fill local AcroForm fields, with optional explicit flattening.

Draw, type, or upload a visible signature and place it on a PDF locally.

Inspect, download, and remove files embedded inside a PDF locally.

Inspect and remove selected comments, highlights, drawings, stamps, and redaction marks while preserving links and forms.

Inspect, export, build, replace, or remove a nested PDF bookmark tree locally.

Inspect and selectively remove scripts, automatic or external actions, attachments, interactive media, and XFA content locally.

Find page-aligned visual differences with an overlay slider and local report.

Generate a complete Xcode asset catalogue and Expo Android icons from one image.

Quickly crop, reposition, and resize an image before downloading or using it in another tool.

Combine ordered JPEG, PNG, and WebP images into one PDF — entirely in your browser.

See the public IP address a server actually sees, whether you have IPv6, and the headers behind it.

Look up a domain's registration data over RDAP alongside its live DNS records — registrar, dates, status codes, and nameservers.

Typeset GitHub-flavoured Markdown as a PDF — tables, task lists, and code blocks included — with a choice of themes.

Extract text from a PDF and convert it to Markdown — headings, paragraphs, and lists detected automatically.

Type a few letters and get a clean branded logo for your project.

Place an image onto any surface with 3D perspective. Map a second image onto a four-point quad for realistic composites.

Combine multiple PDF files into a single document — all in the browser.

Split a PDF into individual pages or custom ranges. Download as a ZIP.

Drag and drop to reorder pages in your PDF, then download the result.

Select and remove unwanted pages from a PDF — all in the browser.

Pick specific pages from a PDF and download them as a new file.

Rotate individual pages or all pages in a PDF by 90°, 180°, or 270°.

Change the page size of your PDF to A4, Letter, or custom dimensions.

Losslessly optimise fonts, content streams, and duplicate resources with WebAssembly.

Bake form fields and annotations into page content, making them permanent.

View, edit, or strip metadata (title, author, keywords) from a PDF.

Paste a string to see each character with its numeric code point underneath.

Check text and background contrast ratio against WCAG 2.1 AA and AAA thresholds.

Convert CSV to JSON or JSON arrays to CSV with comma, tab, or semicolon delimiters.

Format and validate YAML, convert YAML to JSON, or JSON to YAML — all in the browser.

See everything your browser reveals — user agent, screen, GPU, network, and more.

Enter a date and see it formatted in ISO 8601, RFC 2822, SQL, relative, and more.

Pick a date and time, then see it displayed across multiple time zones.

Calculate the duration between two dates, or add a duration to find an end date.

Add or subtract days, weeks, months, or business days from any date.

Find the ISO week number for a date, or look up the date range for a given week.

Paste text containing Unix timestamps and see them converted to dates inline.

Convert between decimal, hexadecimal, octal, and binary. Supports large integers.

Convert between bytes, kilobytes, megabytes, and more — in both SI and binary units.

Calculate aspect ratios from dimensions, or find a missing dimension from a ratio.

Toggle permissions or enter a number to see the chmod breakdown.

Enter CIDR notation to see the network details, host range, and subnet mask.

Paste a title or sentence to generate a URL-friendly slug.

Convert text between camelCase, PascalCase, snake_case, kebab-case, and more.

A searchable reference of all HTTP status codes with descriptions and use cases.

Generate secure random passwords with configurable length and character sets.

Generate cryptographically random secrets and tokens for API keys, JWT secrets, and more.

Generate UUIDs, short IDs, NanoIDs, and ULIDs with one click.

Encode text to Base64 or decode Base64 back to text.

Percent-encode text for URLs or decode encoded strings.

Convert special characters to HTML entities and back.

Generate placeholder text in paragraphs, sentences, or words.

Convert between Unix timestamps and human-readable dates.

Count characters, words, sentences, lines, and bytes in your text.

Upload a square PNG and get every favicon size your site needs.

Upload a PNG and get every icon size a Chrome extension needs.

Inspect Open Graph tags and preview how your link looks on social platforms.

Pretty-print and validate JSON with clear error messages.

Decode JWT headers and payloads — no secret needed.

Convert colours between hex, RGB, and HSL with a live preview.

Hash text or verify a local file against a SHA checksum without uploading it.

Test regular expressions with live match highlighting and capture groups.

Compare two blocks of text and see additions and deletions highlighted.

Convert between px, rem, em, vh, and vw with configurable base values.

Spot invisible and non-printing characters hiding in your text.

Write Markdown and see a live rendered preview side by side.

Batch compress images with side-by-side preview and ZIP download.

Decode cron expressions into plain English and preview upcoming run times.

Convert SVG files to rasterised PNG or JPEG at any size.

Enter text or a URL to generate a QR code. Download as SVG or PNG.

Paste a className string and get it back sorted in the recommended Tailwind order.

Pick dimensions, colours, and overlay text — get a downloadable placeholder PNG or a data URL.