All tools

Erase the background from a photo and export a transparent PNG.

A distraction-free notepad with multiple notes that auto-save in your browser.

Download an .m3u8 HLS stream and save it as a single MP4 file.

Pretty-print and beautify JSON with custom indentation.

Count words, characters, sentences, and reading time.

One image in, a ready-to-copy icon pack out for iOS, Android, web, macOS, Windows and extensions.

Query A, AAAA, MX, TXT, NS, CNAME and other DNS records for any domain.

Record your screen, window or tab with optional microphone audio.

Play M3U8 (HLS), MP4, WebM and local video files right in the browser.

Add classic top and bottom captions to any image and download the meme as PNG.

Convert iPhone HEIC/HEIF photos to JPG or PNG in your browser.

Run real ffmpeg commands on your video, audio or image — no install.

Shrink large video files by lowering bitrate, resolution and frame rate.

Merge several PDFs into one file or split pages out of a PDF.

Dictate with your microphone and get a live, editable transcript.

Open a CSV as a sortable, searchable table and edit cells before exporting.

Measure your typing speed in WPM with live accuracy tracking.

Turn any part of a video into a looping animated GIF.

Convert text between 11 different letter cases.

Generate downloadable QR codes for any text or URL.

Draw or type a signature and export a transparent PNG.

Cut a clip out of any video by dragging start and end handles.

Build a professional invoice with line items, tax and totals, then save it as a PDF.

Design a professional HTML email signature and copy it into any mail client.

Turn any image into a full favicon pack with .ico, PNGs, manifest and HTML.

Write and run JavaScript or TypeScript with a live console.

Extract the soundtrack from a video and save it as WAV or Opus.

Compare two texts line-by-line with an LCS diff.

Design linear, radial, and conic gradients visually.

Shrink JPEG, PNG, and WebP images without a server.

Convert WebP images to JPG or PNG, or encode images as WebP.

Create secure passwords with custom length and character sets.

Precision stopwatch with laps plus a countdown timer with alarm.

Measure TTFB, page size, compression, caching and resource counts for any URL.

Build ffmpeg commands for video and audio with explained flags.

Convert video between MP4 and WebM with resolution control.

Shrink a PDF's file size with screen, ebook or print presets.

Turn code snippets into shareable syntax-highlighted images.

Count exact LLM tokens for GPT, Claude and Gemini prompts.

Validate JSON syntax and see detailed error diagnostics.

Turn any text into a downloadable word cloud image.

Resize and convert many images at once in your browser.

Trace PNG or JPG images into clean, scalable SVG paths.

Convert between Unix timestamps and human-readable dates.

Searchable ffmpeg command examples for video, audio and streaming.

Resize or crop video to 9:16, 1:1, 4:5 and other social presets.

Convert PDF pages to PNG, JPEG or WebP images at any resolution.

Spin a wheel to pick a random name or option fairly.

Crop a photo to official passport, visa and ID sizes at print DPI.

Grab stills from a video, or build a contact sheet of thumbnails.

Remove a known PDF password or add password protection to a PDF.

Layer multiple box-shadows with a live preview.

Resize images to exact pixel dimensions with locked aspect ratio.

Convert images to and from AVIF with quality control.

Encode or decode text to/from Base64, UTF-8 safe.

Generate bulk RFC 4122 v4 UUIDs with formatting options.

Convert colors between HEX, RGB, HSL, HWB, OKLCH and CMYK.

Trace every redirect hop with status codes, timing and the final URL.

Calculate X% of Y, percent change, and reverse percentages.

Validate JSON data against a JSON Schema (Draft-07) in your browser.

Focus timer with customisable work sprints and breaks.

Convert an animated GIF into a far smaller MP4 or WebM video.

Combine JPG, PNG or WebP images into a single PDF, offline.

Reorder, rotate, reverse and delete PDF pages, then save a new file.

Explore JSON as a collapsible, color-coded tree.

Convert length, weight, temperature, area, volume, speed, and data-size units.

Decode a JWT's header and payload, and check expiry.

Open a .sqlite/.db file in your browser and run SQL against it.

Find expensive SQL patterns, missing filters and index opportunities.

Estimate GPT, Claude and Gemini API spend per call and per month.

Compress JSON by removing whitespace and show bytes saved.

Pull emails, links, domains and phone numbers out of any text.

Edit HTML, CSS, and JS in tabs with an instant sandboxed live preview.

Generate MD5, SHA-1/256/384/512 hashes of text.

Check WCAG 2.1 contrast ratio between two colors.

Calculate network, broadcast, host range, and mask from an IPv4 CIDR.

Open an APK, decode its manifest and browse or download every file inside.

Open a live WebSocket connection, send frames and read replies.

Validate Kubernetes manifests and catch risky container settings.

Stamp text watermarks across every page of a PDF.

Estimate password entropy, crack time, and get actionable advice.

Write schema and seed SQL, then run queries against an in-memory database.

Check docker-compose.yml for errors, bad ports and risky settings.

Remove line breaks and tabs, or swap them for any separator.

Beautify and indent messy HTML markup.

Combine images into one sprite sheet plus ready-to-paste CSS.

Preview how your page appears in Google search results.

Convert Markdown to HTML with a live preview.

Generate Kotlin data classes from any JSON payload.

Encode or decode strings using encodeURIComponent/encodeURI.

Check HTTP status codes and redirects for many URLs at once.

Compute mean, median, mode, variance, and more from a list of numbers.

Test regular expressions with live match highlighting.

Unzip ZIP, TAR, GZ, 7Z, RAR and more in your browser — browse folders, preview and download files.

Turn JSON into Java records or POJOs with getters and setters.

Strip emails, keys, tokens and personal data before prompting an LLM.

Beautify or minify CSS with safe string handling.

Combine photos into a grid collage and download a PNG.

Analyse a HAR export: slow requests, errors, sizes and host breakdowns.

List every script, stylesheet, image, font and media file a page loads.

Validate IBANs with the mod-97 checksum and country length rules.

Analyse nginx.conf for syntax, security and performance issues.

Convert images between PNG, JPEG, and WebP in your browser.

Convert between CSV and JSON with delimiter and header options.

Convert a datetime across multiple IANA timezones at once.

Decode a JWT and audit its claims for common issues.

See if your system, context and user messages fit the model window.

Count characters and bytes with limit presets.

Generate a complete SEO and social meta tag block.

Generate Open Graph and Twitter Card meta tags.

Turn JSON into Swift structs that conform to Codable.

Generate Dart model classes with fromJson and toJson from JSON.

Build the exact OpenSSL command for keys, CSRs and certificate checks.

Paste many URLs and save every file one by one, with a pause between downloads.

Check card numbers with the Luhn algorithm and detect the brand.

Validate a GitHub Actions workflow YAML and catch security and structure mistakes.

Split documents into token-sized overlapping chunks for embedding.

Turn newline-separated lines into a quoted, comma-joined string.

Visually build flexbox layouts and copy the CSS.

Add film grain or digital noise to an image with live preview.

Convert Android string resources to JSON and back.

Calculate exact age and countdown to the next birthday.

Generate complementary, analogous, triadic and other palettes.

Calculate your Body Mass Index and healthy weight range.

Cosine, dot product and distance between two embedding vectors.

Design CSS grid layouts with live preview.

Build a downloadable .ics calendar invite with reminders and recurrence.

Build a production-ready systemd .service unit file.

Validate JSONL and fine-tuning datasets line by line.

Search and replace text with plain or regex matching.

Split long text into chunks by characters, words, lines or a separator.

Crop images by dragging a selection box, right in your browser.

Inspect EXIF, camera and GPS metadata in photos, then strip it out.

Build JSON-LD structured data for common schema types.

Generate random integers, decimals, dice rolls, and shuffled lists.

Format a date using custom patterns and Intl presets.

Break a URL into protocol, host, port, path, query, and hash.

Calculate monthly loan payments, total interest, and view the full amortization schedule.

Compare two JSON documents and see added, removed and changed keys.

Build a valid docker-compose.yml from a simple service form.

Convert dp, px and sp across every Android density bucket.

Render Markdown into a printable page and save it as a PDF.

Extract the dominant colors from any image.

Check that a model's JSON reply matches your JSON Schema.

Generate an MCP, OpenAI or Anthropic tool schema from example arguments.

Turn any text into a clean, URL-friendly slug.

Create frosted-glass UI effects with live preview.

Convert YAML to JSON and JSON to YAML.

Turn any JSON document into a ready-to-paste PHP array.

Generate random fake user records with names, emails, and addresses.

Calculate the difference between two dates, or add/subtract time.

Generate a 50–950 tint and shade scale from one color.

Searchable reference of HTTP status codes with meaning and usage guidance.

Calculate tip amount and split the bill evenly among a group.

Send live API requests and generate curl, fetch, axios snippets.

Count code, comment and blank lines in any source file.

Scan pasted code or text for likely leaked secrets.

Convert JSON Lines to a JSON array and back again.

Turn a JSON API response into OpenAPI, JSON Schema or TypeScript.

Write Markdown with a live rendered preview and toolbar.

Turn text into a natural voice — play it aloud or download the audio.

Compare two lists and see common, A-only and B-only items.

Build keyframe animations visually with a live preview.

Add a custom text watermark to your images.

Convert Apple property lists to JSON and back.

Turn JSON into serde-ready Rust structs.

Convert JSON Web Keys to PEM and PEM keys back to JWK.

Build Apple's PrivacyInfo.xcprivacy file for App Store submission.

Convert internationalised domain names to punycode and back.

Calculate a discounted price plus sales tax and total savings.

Searchable reference of common git commands with copy buttons.

Searchable Android permission list with protection levels and manifest snippets.

Convert HTML markup into clean React/JSX component code.

Diff two JSON documents and list added, removed, and changed paths.

Generate parametric SVG wave shapes for sections.

Generate a Zod validation schema and TypeScript type from JSON.

Generate cryptographically secure random strings.

Generate arrays of mock JSON records from a simple field schema.

Explain a 5-field cron expression and list upcoming run times.

Add, subtract, multiply, divide, and simplify fractions.

Build function-calling schemas for OpenAI, Claude, Gemini, MCP and the AI SDK.

Deduplicate lines of text with flexible matching.

Add text to the start or end of every line at once.

Combine translate, rotate, scale, and skew with a live preview.

Convert numbers between binary, octal, decimal, hex, and custom bases.

Convert between .proto-described binary payloads and JSON.

Convert identifiers between camelCase, snake_case, kebab-case, and more.

Convert install/run/exec commands between npm, yarn, pnpm and bun.

Points, pixels, scale factors and App Store screenshot sizes for iPhone, iPad and Apple Watch.

Create an .editorconfig file with per-language overrides.

Generate C# classes or records from JSON, with nullable reference types.

Build a custom property theme with a live preview.

Convert SVG files to PNG images at any scale.

Convert any file to a Base64 data URI, or decode Base64 back to a file.

Live countdown to any date and time.

Generate time-based one-time passcodes from a Base32 secret.

Audit prompts for vague wording, missing formats and leaked secrets.

Convert function-calling schemas between OpenAI, Anthropic, Gemini and MCP.

Lint an OpenAPI or Swagger spec for contract quality issues.

Flatten a JSON array of objects into a CSV spreadsheet.

Generate placeholder text for mockups and designs.

Translate common Tailwind utility classes into plain CSS.

Tune blur, brightness, contrast, and more with a live preview.

Convert images to Base64 data URLs and back again.

Generate scannable Code 128 and EAN-13 barcodes.

Analyze HTML for missing or problematic meta tags.

Beautify and normalize YAML with a hand-written parser.

Build and sign a JWT with HS256/384/512 from a header, payload, and secret.

Build a .gitignore file from built-in language and OS presets.

Build the AASA file that powers iOS universal links.

Parse a user-agent string into browser, engine, OS, and device type.

Project investment growth with compounding and recurring contributions.

Minify or beautify JavaScript, CSS, HTML, JSON, XML and SQL.

Validate and inspect UUIDs, including version and timestamp.

Build a linked table of contents from Markdown headings.

Inspect a PDF's title, author, version, page count and encryption.

Build a Content-Security-Policy header from per-directive sources.

Sort lines alphabetically, numerically, or by length.

Generate fluid typography clamp() CSS from min/max viewport and size.

Searchable regex syntax reference with examples and copy buttons.

Compare two prompt versions word by word with a token delta.

Diff two OpenAPI specs and flag breaking changes.

Convert JSON documents to clean, readable YAML.

Auto-fix broken JSON: quotes, trailing commas, comments, and more.

Reverse text by character, word, line, or sentence.

Clean up filenames for safe cross-OS use.

Fine-tune per-corner border radii visually.

Build an editable HTML table and export HTML + CSS.

Design named grid-template-areas visually.

Rotate images in 90° steps and flip horizontally or vertically.

Create a robots.txt file with custom crawl rules.

Infer TypeScript interfaces or type aliases from JSON data.

Beautify XML and validate well-formedness using DOMParser.

Translate text to Morse code and back, with audio playback.

Sign a message with HMAC using a secret key.

Generate and verify bcrypt password hashes with adjustable cost.

Generate sortable ULIDs with timestamp and random components.

Convert dates and durations to and from ISO 8601 format.

Turn a hex color into SwiftUI, UIKit and asset catalog code.

Convert IPv4 to decimal/hex/binary, and expand or compress IPv6.

Solve, simplify, and scale ratios and aspect ratios.

Build cron expressions visually with a human-readable description.

Convert between OpenAI chat, ShareGPT, Alpaca and prompt/completion.

Create soft UI neumorphic shadows with a live preview.

Unix permission calculator: checkboxes, octal, and symbolic.

Pretty-print, minify, sort and deduplicate JSON Lines files.

Fit as many RAG chunks as possible into a model context budget.

Convert JSON into well-formed, indented XML.

Validate OpenAPI 3.x / Swagger 2.0 documents in JSON or YAML.

Layer multiple text-shadows with a live preview.

Simplify ratios and compute matching dimensions.

Build responsive @media rules with breakpoint presets.

Sample any pixel color from an uploaded image.

Generate an XML sitemap from a list of URLs.

Convert XML to JSON and JSON to XML using the browser's DOMParser.

Convert bytes, KB/MB/GB/TB with binary (KiB/MiB) or decimal units.

Convert HTML markup into clean Markdown syntax.

Convert Localizable.strings files to JSON and back.

Encrypt or decrypt text with AES-GCM and a passphrase.

Count business days between two dates, excluding holidays.

Simulate how a palette looks with common color vision deficiencies.

Convert between URL query strings and JSON, with nested bracket support.

Escape and unescape strings for JSON, JS, HTML, XML, SQL, RegExp, and shell.

Lint a Dockerfile for common best-practice issues.

Generate Nginx snippets for redirects, proxies, caching and security headers.

Build ~/.ssh/config Host entries from simple form fields.

Convert Maven POM XML to Gradle Kotlin DSL and back.

Pull readable text out of uncompressed PDF content streams.

Grade HTTP response headers against security best practices.

Remove exact and near-duplicate rows from fine-tuning datasets.

Convert between px, rem, em, %, pt, vw, and vh.

Convert any image into ASCII text art in your browser.

Compute SHA-1/256/384/512 digests of a local file.

Total up work hours across shifts with breaks and hourly pay.

Look up common HTTP headers and explain pasted raw headers.

Side-by-side line diff of two code snippets with stats.

Parse an OpenSSH public key and show its SHA256/MD5 fingerprints.

Validate Model Context Protocol tool definitions before you ship them.

Profile a JSONL training set: token stats, roles, duplicates and cost.

Design polygon clip-path shapes with a live preview.

Slice a sprite sheet into individual frame images.

Generate SQL INSERT statements from a JSON array of objects.

Generate RSA or ECDSA key pairs and export them as PEM.

Validate package.json fields, semver ranges, and scripts.

Format and indent SQL queries for readability.

Translate whole crontab files into plain English, line by line.

Wrap any JSON Schema into a ready-to-use function-calling tool.

Generate a Markdown changelog from two OpenAPI versions.

Sort JSON object keys alphabetically, naturally, or by array field.

Merge two or more JSON documents with shallow/deep strategies.

Analyze readability with Flesch score and syllable stats.

Count how often each word appears in your text.

Design custom scrollbars with live preview.

Strip comments, metadata, and whitespace from SVG markup.

Analyze keyword frequency and density in your text.

Encode or decode HTML entities in text.

Generate random colors and palettes with HSL constraints.

Expand a CIDR block into individual addresses, or compress a range into CIDR blocks.

Check primality, factorize numbers, list primes, and compute GCD/LCM.

Solve ax² + bx + c = 0 with real or complex roots.

Convert .env files to JSON, YAML, or shell exports.

Turn pasted HTML into a print-ready page you can save as PDF.

Generate CORS headers/config for Nginx, Apache, Express, or Workers.

Generate arrow and triangle shapes with borders or clip-path.

Preview per-corner border-radius on your own image.

Convert between milliseconds, seconds, minutes, hours, days, and weeks.

Plan Cache-Control, ETag and max-age headers for any asset type.

Compare versions and test semver ranges (^, ~, >=).

Validate YAML and preview it as JSON.

Convert Java .properties files to JSON and back, with nested keys.

Generate solid or checkerboard placeholder images.

Sort, dedupe, and filter lines with regex include/exclude.

Compare two model responses to measure drift between runs or models.

Audit an API for naming, casing and response consistency.

Inspect code points, categories, and byte lengths of every character.

Searchable reference of common HTML character entities.

Preview heading and body font combinations live.

Build JSON-LD FAQPage structured data from Q&A pairs.

Convert between base64/data URI text and image previews.

Spell numbers out in words or format them as currency, ordinals and locale text.

Generate Go structs with JSON tags from JSON data.

Blend two colors with a ratio slider and preview CSS blend modes.

Search file extensions and their MIME types.

Build OAuth 2.0 / OIDC authorization URLs with PKCE support.

Add, multiply, transpose, and invert matrices with an editable grid.

Convert a curl command into JavaScript fetch() code.

Convert between PHP serialize() format and JSON.

Generate password policy rules, regex and copy for NIST or PCI presets.

Generate a low-fidelity blurred placeholder preview.

Generate Python dataclasses from JSON data.

Inspect dimensions, norm, mean and spread of an embedding vector.

Detect non-ASCII, invisible, smart-quote, and emoji characters.

Strip all emoji characters from text instantly.

Compare and rank the specificity of CSS selectors.

Inspect an image's dimensions, size, type, and aspect ratio.

Convert CSV into a Markdown or HTML table with alignment options.

Generate SQL INSERT statements from CSV data.

Find the ISO week number, day of year, and quarter for any date.

Convert a list of Unix timestamps to readable dates in bulk.

Expand an IPv6 address to full form or compress it to shorthand.

Parse Set-Cookie headers and flag security issues.

Round, floor, ceil, or truncate a list of numbers to decimals or multiples.

Convert a JS object literal into strict, valid JSON.

Create shell aliases for Bash, Zsh or Fish with correct quoting.

Parse a curl command into method, URL, headers, and body.

Hash text or a file and compare against an expected checksum.

Infer a JSON Schema from a sample JSON document.

Trim, collapse, and clean up whitespace in text.

Generate JSON-LD BreadcrumbList structured data.

Spell out text using the NATO phonetic alphabet.

Encode or decode text using RFC 4648 Base32.

Extract and normalize colors from CSS gradients or lists.

Validate and reformat MAC addresses, and look up the OUI vendor prefix.

Convert between decimal, scientific, and engineering notation.

Inspect a pasted webhook request and verify its HMAC signature.

Build a Permissions-Policy header controlling camera, geolocation and more.

Prettify and align Markdown tables with column alignment.

Encode or decode text with ROT13 or any Caesar shift.

Remove comments from JS, HTML, Python, or SQL source.

Check if X-Frame-Options and CSP frame-ancestors block framing.

Split delimited text into aligned columns and re-join it.

Parse simple SQL INSERT INTO statements into JSON rows.

Convert text to binary or octal codes and back.

Escape special characters for use inside a JSON string.

Explore JSON paths and evaluate simple JSONPath queries.

Shuffle a list of lines and optionally pick a random subset.

Generate canonical link tags to avoid duplicate content issues.

Convert nested JSON config into .env variables.

Generate a Subresource Integrity hash for scripts and stylesheets.

Diff two sets of HTTP headers, case-insensitively.

Find the greatest common divisor and least common multiple of numbers.

Format and indent GraphQL queries and mutations.

Generate .htpasswd lines using SHA-1 or plain text.

Convert between numbers and Roman numerals.

Convert CSV data into well-formed XML with custom tag names.

Convert a date to its day-of-year number, or back again.

Searchable reference of DNS record types with examples.

Decode WebSocket frame bytes into opcode, flags, mask and payload.

Scan robots.txt for accidental disclosure of sensitive paths.

Search well-known TCP/UDP ports and their services.

Reverse JSON string escaping back to readable text.

Turn text into a big ASCII banner using letters and numbers.

Convert TOML configuration files to JSON and back.

Encode or decode text with the classic Vigenère cipher.

Build or decode an HTTP Basic Authorization header.

Validate and normalise lists of IPv4, IPv6 and CIDR entries offline.

Compute logarithms of any base and exponentiation results.

Generate Apache .htaccess redirect and rewrite rules.

Browse a GraphQL SDL schema's types, queries, and mutations.

Generate acronyms, initials, or camelCase from phrases.

Generate Luhn-valid fake card numbers for testing.

Decode a PEM CSR or certificate into its ASN.1 structure.

Add or remove line numbers from text with custom formatting.

Repeat text a set number of times with custom separators.

Convert between spreadsheet column numbers and letters.

Check if a year is a leap year and find nearby leap years.

Generate arithmetic, geometric, or Fibonacci-like number sequences.

Convert indentation between tabs and spaces.

Generate a valid RFC 9116 /.well-known/security.txt file.

Pick a Referrer-Policy value and get header/meta/server snippets.

Obfuscate text with ROT13, zero-width spaces, or leetspeak.

Normalize unicode, smart quotes, dashes, and whitespace.

Convert certificates and keys between PEM and DER encoding.

Pick random emoji or symbols from curated categories.

Align delimited text into padded, readable columns.

Hard wrap text to a fixed column width.

Generate lorem ipsum text wrapped in HTML tags.

Convert Markdown content into a JSX React component.

Generate random strings from a custom pattern.

Convert INI config files to JSON and back.

Check and fix title case capitalization word by word.