Apache Answer
Community question-and-answer platform
Web Utility
Choose web tools by file format and output needs. Compare image or SVG quality after optimization.
196 Web Utility sites with bilingual introductions and official links.
Apache Guacamole
Browser-based remote desktop access
Apache HertzBeat
Service monitoring and alerts
Apache NiFi
Visual data-flow automation
Apache SkyWalking
Observability for distributed services
Apache Superset
SQL exploration and dashboards
Authentik
Configurable flows for identity integration
Breadtopia
Bread-making recipes, instruction, and equipment resources.
Casdoor
Multi-protocol application identity management
ChainBaker
Bread-making instruction combining recipes, principles, and techniques.
Coder
Self-managed development workspaces
Difford's Guide
A reference for cocktail recipes, ingredients, and spirits.
Doppler
Secret-management workflows across environments
Fold'NFly
A paper-airplane collection with folding instructions and flight categories.
GPS Visualizer
A tool for turning GPS tracks, coordinates, and addresses into maps and profiles.
GPSmyCity
Self-guided walking tours for exploring city attractions.
GPX Studio
An online GPX editor for creating, viewing, and refining routes.
Hungry Huy
Vietnamese and Asian recipes accompanied by food-culture explanations.
izi.TRAVEL
A platform for discovering audio tours of cities and attractions.
King Arthur Baking
Baking recipes, technique articles, and ingredient resources.
Korean Bapsang
Korean home-cooking recipes and dishes for celebrations.
KubeSphere
Integrated management for cloud-native applications
Logto
Authentication and multi-tenant identity integration
Love and Lemons
Recipes centered on vegetables, plant-based cooking, and seasonal flavors.
MapHub
Interactive maps with sharing, collaboration, and embedding options.
Minimalist Baker
Everyday recipes organized around simpler ingredients and preparation.
NetKnots
Knot instructions for fishing, outdoor activities, and general rope work.
Okteto
Cloud development environments
Omnivore's Cookbook
Home-cooking recipes featuring Chinese dishes and Asian-inspired flavors.
On The Go Map
A route planner for walks, runs, and rides with distance information.
Once Upon a Chef
Home-cooking recipes presented with step-by-step photographs.
Origami Club
An origami collection organized around traditional and everyday subjects.
Origami.me
Origami instructions presented through diagrams, steps, and videos.
Paper Kawaii
Origami and paper-craft tutorials using photos, videos, and diagrams.
Pastry Chef Online
Baking recipes, techniques, and practical explanations for pastry preparation.
Pick Up Limes
Plant-based recipes, videos, and articles for everyday cooking.
Pinch of Yum
Everyday recipes organized around dinners, soups, and meal preparation.
Rancher
Unified management of Kubernetes clusters
Ravelry
A community and database for knitting patterns, yarn, and project organization.
Read the Docs
Technical-documentation builds from repositories
RecipeTin Eats
Home-cooking recipes for main dishes, quick dinners, and varied cuisines.
Regex Vis
View a regular expression's branches, groups, and repetition as a diagram, then check it against test strings.
Rick Steves
European travel guidance through articles, tours, and broadcast material.
Scribble Maps
A tool for drawing, annotating, and sharing geographic information on maps.
Seat61
A detailed guide to rail travel, ticketing, and practical journey planning.
Smitten Kitchen
Recipes and baking ideas developed around a small home kitchen.
Sourcegraph
Codebase context for developers and agents
StackBlitz
Web development in the browser
SuperCook
A recipe search engine driven by ingredients already available.
Tainan Travel
Official Tainan tourism information on attractions, events, transport, and walking tours.
Taiwan Everything
Taiwan travel articles organized by region and subject.
Taiwan Trails and Tales
Detailed hiking write-ups covering trails around Taiwan.
The Fresh Loaf
A community for discussing bread, sourdough, and home-baking experiences.
The Japan Guide
Japan travel guidance covering attractions, transport, and seasonal reports.
The Perfect Loaf
A sourdough resource covering starters, dough, and fermentation.
Tin Can Knits
Knitting patterns emphasizing seamless construction and a range of sizes.
uMap
A custom-map creator using OpenStreetMap layers with embedding support.
Viet World Kitchen
Recipes and writing exploring Asian cooking and Vietnamese food traditions.
Weekend Bakery
Bread recipes and fermentation articles for home bakers.
Windmill
Code-defined internal workflows and applications
CSS Gradient
Choose gradient colors and an angle, compare the live preview, and copy the matching CSS background settings.
Algolia
Algolia offers hosted search APIs and frontend tools for teams improving search and filtering on a content site.
Applitools
Applitools offers visual testing and interface comparison for teams comparing interface differences across browsers.
Argos
Argos offers screenshot diffs and visual testing for teams checking whether a PR changes existing pages.
Artillery
Artillery offers load and continuous performance testing for teams testing traffic spikes before release.
Auth0
Auth0 offers an application authentication and authorization service for teams adding sign-in to a website.
Amazon Web Services
Amazon Web Services offers cloud computing and developer services for teams combining compute, storage, and database resources.
Beeceptor
Beeceptor offers mock APIs and request inspection for teams verifying payloads sent by a webhook.
beehiiv
beehiiv focuses on newsletter editing, subscriptions, and analytics.
Better Stack
Better Stack offers an uptime monitoring and logging platform for teams receiving outage alerts and checking related logs.
BrowserStack
BrowserStack offers a real device and browser testing platform for teams reproducing a web issue on a specific phone.
Bugsnag
Bugsnag offers application stability and error monitoring for teams investigating mobile or web application crashes.
Buildkite
Buildkite offers configurable continuous integration pipelines for teams managing build workflows across projects.
BuiltWith
BuiltWith offers website technology usage lookup for teams researching the technology mix of a public site.
Buttondown
Buttondown focuses on writing and sending newsletters.
Censys
Censys offers internet asset and certificate lookup for teams checking public assets under an organization's domain.
Checkly
Checkly offers API and browser synthetic monitoring for teams continuously checking a critical sign-in flow.
Chromatic
Chromatic offers component review and visual testing for teams reviewing component states after changes.
CircleCI
CircleCI offers automated build and test pipelines for teams running checks after each commit.
Clerk
Clerk offers application sign-in and user management components for teams building registration and account management pages.
Cloudflare
Cloudflare offers network performance, security, and edge services for teams setting DNS and protection for a public website.
Code Beautify
Code Beautify offers a collection of code and data formatting tools for teams inspecting a minified configuration file.
ConvertCSV
ConvertCSV offers CSV and text format conversion for teams preparing exported tabular data.
Cronitor
Cronitor offers scheduled job and endpoint monitoring for teams finding background jobs that missed a run.
CSVJSON
CSVJSON offers conversion between CSV and JSON for teams turning spreadsheet data into program input.
Datadog
Datadog offers an infrastructure and application monitoring platform for teams correlating metrics, logs, and traces.
DebugBear
DebugBear offers website performance monitoring and diagnostics for teams tracking changes in Core Web Vitals.
Descope
Descope offers authentication flows and user management for teams planning a multifactor sign-in experience.
DigitalOcean
DigitalOcean offers cloud servers and application deployment services for teams setting up a self-managed development server.
Fastly
Fastly offers an edge caching and application delivery platform for teams reducing static asset latency for global visitors.
Fern
Fern offers API documentation and SDK generation tools for teams maintaining developer docs from interface definitions.
Fly.io
Fly.io offers a distributed application deployment platform for teams placing services near users in different regions.
FusionAuth
FusionAuth offers an user login and authorization platform for teams centralizing application user records.
Gatling
Gatling offers a performance testing and traffic simulation platform for teams observing latency under service pressure.
Ghost
Ghost focuses on running a blog and member newsletter.
Google Cloud
Google Cloud offers cloud computing and data services for teams planning application deployment and analytics pipelines.
Grafana
Grafana offers monitoring dashboards and observability tools for teams combining system metrics from several sources.
Grammarly
Grammarly focuses on English spelling, grammar, and tone suggestions.
Hemingway Editor
Hemingway Editor focuses on an editor highlighting hard-to-read sentences.
Heroku
Heroku offers an application hosting platform for teams simplifying deployment of a web prototype.
Hetzner
Hetzner offers cloud and dedicated server services for teams deploying a self-managed application environment.
Honeycomb
Honeycomb offers event-based observability and tracing for teams querying latency for a particular user flow.
HTTP Status
HTTP Status offers HTTP responses and redirect-chain checks for teams verifying 301 routes after a site migration.
Infisical
Infisical offers application secrets and environment variable management for teams distributing credentials across development and production.
Jenkins
Jenkins offers an extensible automation server for teams connecting existing build and release jobs.
JSON Editor Online
JSON Editor Online offers visual JSON editing and tree inspection for teams navigating a nested API response.
JSON Formatter
JSON Formatter offers JSON formatting and reading tools for teams making minified JSON easier to inspect.
JSONLint
JSONLint offers JSON syntax validation and formatting for teams finding bracket or comma errors in pasted data.
JWT.io
JWT.io offers JWT structure inspection and related documentation for teams debugging claims in a token.
Keycloak
Keycloak offers open-source identity and access management for teams centralizing sign-in across applications.
Kong
Kong offers an API gateway and service connectivity platform for teams managing service entry points and traffic policies.
TestMu AI（原 LambdaTest）
TestMu AI provides testing for web, mobile, and AI agents.
LanguageTool
LanguageTool focuses on multilingual spelling and grammar checks.
Microsoft Azure
Microsoft Azure offers cloud infrastructure and application services for teams integrating enterprise identity with cloud workloads.
MDN HTTP Observatory
MDN HTTP Observatory checks HTTP security headers on public sites.
MXToolbox
MXToolbox offers mail and DNS record diagnostics for teams checking MX and related mail-domain settings.
Neon
Neon offers cloud PostgreSQL and branching workflows for teams isolating database changes for preview environments.
Netlify
Netlify offers a website deployment and build platform for teams connecting a static site to continuous deployment.
New Relic
New Relic offers an application performance and observability platform for teams analyzing slow production requests.
Novelcrafter
Novelcrafter focuses on characters, plots, and drafts for longer fiction.
Ory
Ory offers identity, authorization, and account services for teams separating sign-in from permissions management.
PageSpeed Insights
PageSpeed Insights offers web performance measurement and diagnostics for teams finding mobile page loading bottlenecks.
Percy
Percy offers visual regression testing and screenshot comparison for teams detecting visual changes from CSS edits.
Pinecone
Pinecone offers a vector database and retrieval tooling for teams testing an indexing workflow for semantic search.
Pingdom
Pingdom offers website availability and performance monitoring for teams monitoring response time for public pages.
PlanetScale
PlanetScale offers cloud databases and schema management for teams planning schema changes and deployment workflows.
ProWritingAid
ProWritingAid focuses on editing suggestions for longer English writing.
Railway
Railway offers an application and database deployment platform for teams quickly creating a service test environment.
Redirect Checker
Redirect Checker offers URL redirect flow inspection for teams finding unnecessary redirect hops.
Redocly
Redocly offers an OpenAPI documentation and governance platform for teams managing several API specification files.
Reedsy Studio
Reedsy Studio focuses on book writing, formatting, and collaboration.
Rollbar
Rollbar offers error monitoring and exception grouping for teams triaging application errors by frequency.
Sauce Labs
Sauce Labs offers cross-browser and mobile testing service for teams validating user flows across devices.
Scalar
Scalar presents API reference documentation and an interface for testing endpoints.
Semgrep
Semgrep offers code rule scanning and security analysis for teams finding risky patterns before code review.
Sentry
Sentry offers application error tracking and performance monitoring for teams finding exceptions and regressions after release.
Shodan
Shodan offers internet device and service search for teams inventorying the exposure of one's public services.
SingleStore
SingleStore offers a real-time analytical and transactional database for teams combining live dashboards with data ingestion.
Snyk
Snyk offers dependency and code security scanning for teams checking known risks in dependencies.
SonarQube
SonarQube offers code quality and security analysis for teams tracking duplication and defect risks in a project.
Speakeasy
Speakeasy offers API SDK generation and maintenance tools for teams maintaining API clients in multiple languages.
SSL Labs
SSL Labs offers public website TLS configuration testing for teams checking certificates and encryption settings.
Substack
Substack focuses on publishing articles through newsletters and a site.
Sudowrite
Sudowrite focuses on fiction brainstorming and rewriting assistance.
Supabase
Supabase offers Postgres backend services and developer tools for teams connecting data, identity, and storage in a prototype.
TableConvert
TableConvert offers a table format conversion tool for teams moving data among CSV, Markdown, and JSON.
Tiger Data（TimescaleDB）
Tiger Data provides a PostgreSQL platform for time-series data.
Traefik
Traefik offers a reverse proxy and cloud-native networking tools for teams routing container services to public domains.
TruffleHog
TruffleHog offers secret detection for repositories and storage for teams locating exposed API keys.
Turso
Turso offers a SQLite-based database service for teams planning data access for distributed applications.
urlscan.io
urlscan.io offers public page requests and security analysis for teams inspecting how an unfamiliar link loads.
Vercel
Vercel offers a frontend deployment and preview platform for teams creating a reviewable preview for each commit.
ViewDNS.info
ViewDNS.info offers DNS and domain diagnostic tools for teams investigating DNS records or resolution issues.
VirusTotal
VirusTotal offers security analysis for files and URLs for teams performing initial checks on a suspicious download link.
Wappalyzer
Wappalyzer offers website technology stack identification for teams understanding frameworks used by a public site.
Weaviate
Weaviate offers a vector database and semantic retrieval for teams building retrieval for document question answering.
WordPress
WordPress focuses on creating blogs and content websites.
WorkOS
WorkOS offers enterprise sign-in and directory integration APIs for teams handling SSO requirements for enterprise customers.
Write.as
Write.as focuses on minimal article editing and publishing.
Yamllint
Yamllint offers YAML syntax and indentation checks for teams checking a deployment configuration file.
ZITADEL
ZITADEL offers an identity management and sign-in platform for teams managing login sources for a multi-tenant app.
SVG Viewer
Edit SVG code beside a preview, check colors, dimensions, and placement, then download the SVG.
Diffchecker
Paste an original and a revised text to see where lines were added, removed, or changed.
draw.io
Arrange shapes, edit labels, and connect steps in your browser, then export the diagram as an SVG file.
Desmos Graphing Calculator
Plot functions in your browser, evaluate them at specific inputs, and use parameter sliders to compare how curves change.
regex101
Test regular expressions in a selected engine, inspect explanations and capture groups, and preview text replacements.
Omatsuri
Use frontend utilities for color shades, CSS gradients, SVG compression, encoding, and related tasks in one browser app.
Globalping
Run network measurements from distributed probes and compare latency, packet loss, and routes across regions.
SunCalc
View sun paths, sunrise, sunset, and shadow data by place, date, and time.
DevDocs
Search documentation for programming languages, frameworks, and Web APIs in one interface.
WAVE
Enter a public page URL to review accessibility errors, alerts, and structural annotations.
Webhook.site
Get a temporary endpoint and inspect incoming webhooks and HTTP requests in real time.
Hoppscotch
Build HTTP requests in the browser and inspect their status, headers, and response body.
quicktype
Generate types and parsing code for TypeScript and other languages from sample JSON.
IT Tools
Use encoding, format conversion, networking, and development utilities in one place.
curlconverter
Turn curl commands into request code for Python, JavaScript, and other languages.
Markmap
Turn Markdown headings and lists into a mind map as you type.
Mermaid Live Editor
Preview flowcharts, sequence diagrams, and other diagrams from Mermaid syntax.
CyberChef
Chain encoding, hashing, compression, and data-analysis operations in the browser.
Bundlephobia
Check an npm package's compressed size, download time, and dependency makeup before installing it.
Transform
Convert code, data formats, and type definitions in the browser.
JSON Crack
Turn JSON, YAML, CSV, or XML into an interactive tree graph.
Crontab.guru
Enter a cron expression to understand its schedule and field syntax.
explainshell
Enter a shell command to look up the manual text for its arguments.
Squoosh
Compress images in your browser and compare quality before saving.
SVGOMG
A browser interface for optimizing SVG files with SVGO settings.
React Doctor
A CLI that uses deterministic static analysis to find risks in React code.
React Scan
A browser tool that automatically highlights React components behind performance issues.
Color.review
A quick contrast checker for comparing foreground and background colors against common accessibility thresholds.
Easing Editor
An Anime.js editor for previewing spring easing and exporting values for CSS or JavaScript.
Easing Functions
A visual reference for common easing curves and how their movement changes over time.
Easing Gradients
An editor that demonstrates eased color transitions and produces CSS with intermediate gradient stops.
OKLCH Color Picker
A picker and converter for working with OKLCH colors, including P3 and sRGB fallback comparisons.
Ray.so
A focused web tool for turning a code snippet into a shareable image.
RegExr
An interactive workspace for learning, building, and testing JavaScript and PCRE regular expressions.
ui.camera
A browser studio for turning UI images or videos into product-style visuals.