Developer Tools

Generates format-correct sample addresses (street, city, ZIP, phone) for 7 countries, for testing forms.

Searchable registry of APIs, MCP servers, and CLIs that AI agents can call, with live health data.

Search and compare developer tool free tiers, startup credits, and recent pricing changes.

Pay-per-request gateway to hundreds of scraping and data APIs with automatic provider failover.

35,000+ AI-generated absurdist product concepts with names, descriptions and images for mock data.

Single-key hub bundling separate APIs for jokes, news, books, recipes, games and art search.

Independent uptime and outage status for 190+ developer APIs like OpenAI, Stripe, AWS and GitHub.

Marketplace of 40+ separate REST APIs (currency, geolocation, weather, market data) under one key.

Machine-readable directory of OpenAPI specs for thousands of public APIs.

Independent uptime probes and outage history for 294 popular APIs like Stripe, OpenAI and AWS.

App Store and Google Play reviews, sentiment, rankings, keyword tracking, and app metadata.

Structured JSON search results (organic, knowledge graph) from Google, Bing, Brave and Perplexity.

Generates meat-themed lorem ipsum filler text as paragraphs or sentences, in JSON, XML or plain text.

Placeholder meat/bacon JPEG images at any width x height, for design mockups and prototypes.

Fetches a company's logo, brand colors, fonts and metadata, or scrapes any URL as clean Markdown.

Live web search index API returning ranked results, images, news, and AI-grounded answers.

Managed cloud Chromium reachable over CDP/Playwright/Puppeteer for scraping, screenshots, PDFs and tests.

Search and inspect libraries hosted on the cdnjs CDN, including versions, files and SRI hashes.

Rust crate metadata, versions, downloads and dependencies from the official crates.io registry.

Checks if AI crawlers (GPTBot, ClaudeBot, PerplexityBot, etc.) can read a site; scores 0-100 with fixes.

Looks up which domains link to a given site, with authority scores, from Common Crawl snapshots.

Generates deterministic SVG avatars from a seed string, with 60+ art styles to pick from.

Checks domain availability and compares registrar prices across 50+ TLDs, no key required.

Looks up public Docker image metadata—tags, digests, architectures—for any Docker Hub repository.

WHOIS/RDAP, DNS, SSL certificate, subdomain and SPF/DMARC/DKIM data for a domain in one call.

Domain, DNS, WHOIS/RDAP, TLS, typosquatting and brand-monitoring lookups across 1,100+ TLDs.

Read-only REST API for Drupal.org's own projects, modules, releases, issues and users.

Free placeholder REST API returning mock products, users, carts, posts and todos as JSON.

Random English words with definitions and pronunciations; also covers six other languages.

Store and fetch small JSON blobs (bins) over a simple REST API, for tutorials or mocking.

Fake but realistic e-commerce data (products, carts, users, login) for prototyping shopping apps.

Mock REST API for testing error handling: force status codes, latency or failure rates via query params.

Free canned REST endpoints (users, products, orders, analytics) for frontend testing.

Generates fake but checksum-valid Spanish DNI/NIE/CIF numbers, IBANs, profiles and vehicle data for testing.

Realistic fake users, posts, comments and todos with full CRUD, reseeded daily, for testing and prototyping.

Compiles and runs submitted code in many languages asynchronously, with status/result lookup by submission id.

Extracts structured JSON from Google Search, Maps, Amazon, Zillow, and general web pages via 40 endpoints.

Registry API for Elixir/Erlang packages: versions, releases, owners, dependencies and docs links.

Generates hipster-themed lorem ipsum placeholder text, plain or mixed with Latin words.

Search and resolve AI agents, MCP servers, and protocols indexed across multiple public registries.

DNS records, backlinks, IP/ASN and related-domain data across 600M+ registered domains.

Returns a cat image for any HTTP status code, useful for error pages and status demos.

Echoes back HTTP requests for testing: headers, auth, redirects, status codes, delays, and more.

Builds custom extractors that turn any website into structured JSON, with scheduling and JS rendering.

Domain WHOIS records—registrant, dates, nameservers—by domain name, returned as JSON or XML.

Checks whether any domain is up, its HTTP status, latency and TLS cert expiry, probed from Singapore.

Generates random 'it's X for Y' startup-pitch name pairs as JSON, JSONP, or plain text.

Package version and CDN download-stats data for npm, GitHub, and WordPress files served over jsDelivr.

Generates synthetic, relational JSON test data from reusable templates with sequences and batch jobs.

Ready-made fake REST endpoints (products, users, carts, coupons) for prototyping frontends without a backend.

Fake posts, comments, albums, photos, todos and users with relations; POST/PUT/PATCH/DELETE are simulated

Sandboxed code execution and judging across 60+ languages, with compile/runtime status and resource limits.

Renders ZPL/EPL/TSPL/CPCL thermal labels and barcodes to PNG/PDF, validates ZPL syntax.

Metadata, dependents, releases and repo stats for open-source packages across 30+ managers.

Fetches a page's title, description and preview image from any URL for link previews.

Live list of public HTTP/SOCKS proxies with protocol, geolocation, anonymity level and uptime data.

Release dates, end-of-life dates and system requirements for Magento, Adobe Commerce and Mage-OS.

Generates realistic fake/test data (names, addresses, etc.) as JSON, CSV, SQL or XML.

Turns a MySQL EXPLAIN plan into an interactive, embeddable visual query plan diagram.

REST utilities for IP subnet math, DNS/WHOIS/SPF lookups, TLS certificate checks, and encoding conversions.

Query metadata, versions, dependencies and full-text search for npm/Node.js packages.

.NET/NuGet package search, versions, metadata and download URLs from nuget.org's V3 API.

Scrapes, crawls, and semantically searches any site, returning Markdown, HTML, JSON, or PDF.

Domain authority scores (0-10) with monthly history, derived from Common Crawl's web graph.

Live search results from Google, Bing, and other engines through one normalized JSON API.

Aggregated real-time status and incident history for 180+ cloud and SaaS providers.

88+ endpoints for image editing, PDF manipulation, OCR and AI vision/document intelligence.

PHP Composer package metadata, versions, download stats and security advisories.

Checks PHP code for syntax errors against a chosen PHP version and returns line-numbered results.

Serves placeholder bear photos at any pixel size via a simple URL pattern, no key needed.

Echoes back request method, headers, body and query params; also test endpoints for auth, cookies and delays.

Live uptime and incident status for 75+ AI providers like OpenAI, Anthropic, and Cursor.

Generates fake user profiles and company records, 100+ fields each, with photos for seed/test data.

Generates fake names, addresses, phone numbers, text, hashes and other mock data for testing.

Generates randomized fake user profiles (name, address, photo, login) for testing apps.

Hosted mock REST API with fake user, order and post data for testing frontend code and QA automation.

Structured Google search results (web, images, shopping, news, places) for scraping and SEO tools.

Fake CRUD REST API with sample product data for testing and prototyping HTTP clients.

Turns any text/hash into a deterministic robot, monster, cat, or avatar image for placeholder use.

Ruby gem metadata: versions, dependencies, download counts, owners and search, from RubyGems.org.

Generates synthetic, format-valid test data (people, IBANs, IDs, VINs) for 90 countries, no key needed.

Headless-browser scraping API with Chrome TLS fingerprinting, JS rendering, and rotating proxies.

Headless-Chrome scraping API with rotating proxies, returning any page as HTML, JSON or Markdown.

Fetches rendered HTML or pre-parsed JSON from any target site via rotating proxies and headless Chrome.

Real-time, structured search results (Google, Bing, Amazon and more) scraped and returned as JSON.

Scores a URL's SEO, performance, accessibility, and AI-search readability across dozens of checks.

Structured JSON results scraped from Google, Bing, Amazon, YouTube, and other search/shopping engines.

Structured search results from Google, Bing, eBay and Reddit, sold as pay-as-you-go credits.

Real-time Google search results (organic listings, ads, local pack, knowledge graph) as structured JSON.

Checks MySQL-style SQL query syntax and returns parser errors with line/column locations.

Returns a pizza-themed image or JSON for any HTTP status code, for demos and error pages.

Sends, retries, and logs outgoing webhooks for your app, with per-customer delivery portals.

Structured search-engine results (Google, Bing, Yandex, DuckDuckGo) via a token-authenticated scraping API.

Turns any URL into clean Markdown or AI-extracted JSON fields, with batch jobs and webhooks.

150 utility endpoints: IBAN/VAT validation, cron parsing, regex testing, format conversion, Dutch test data.

Sandbox with mock REST, GraphQL and SOAP endpoints plus 17 auth schemes for practicing API tests.

Generates v1, v3, v4, v5 and timestamp-first UUIDs, singly or in bulk, and decodes existing ones.

Generates a stable SVG, PNG or WebP avatar/identicon from any string, no key or account needed.

Turns any public URL into markdown/JSON, plus async site crawling, search-and-scrape, and LLM extraction.

Turns any webpage into clean text, rendered HTML, or AI-structured JSON via managed proxies.

Random, joke commit-message generator, also available as plain text or JSON with a permalink.

Directory of x402-protocol pay-per-call APIs with live pricing, uptime and on-chain settlement data.

Returns a random yes, no, or rare maybe answer with a matching reaction GIF; supports forcing an answer.

Fetches any webpage past anti-bot defenses with JS rendering and proxies, returning HTML or JSON.