All Developer Tools

Encore.dev — CI/CD for Applications tool for developers. Specializes in Backend Framework.

Endor Labs — Security Scanning / Mobile App Sec tool for developers. Specializes in Dependency Security.

Endtest — No-code test automation platform for web and mobile apps with record-and-playback and visual test editor.

EU-based card issuing and payment processing platform with compliance-ready APIs.

Engagespot — Push / In-app Messaging SDK tool for developers. Specializes in Notification Infrastructure.

Remote execution and caching platform for Bazel and other REAPI-compatible build tools. Founded by ex-Google engineers who built Googles internal build infrastructure.

Enquirer — CI/CD for Applications tool for developers. Specializes in Interactive CLI.

Entrust IDV — KYC / KYB / AML API tool for developers. Specializes in identity verification.

Env0 — CI/CD for Applications tool for developers. Specializes in Environment Management.

EnVault — lightweight environment variable manager for developer teams and CI/CD.

EnvKey — Secrets Management tool for developers. Specializes in environment management.

Envoy — CDN / Edge / Acceleration tool for developers. Specializes in Service Proxy.

BXD/CyberAgents browser-game distribution platform (formerly G123) — SDK for HTML5 games with in-browser payments.

Enzuzo — Privacy compliance platform generating GDPR/CCPA privacy policies, cookie banners, and data mapping documentation.

API lifecycle management platform (Apikit, Apinto Pro, APISpace) by Shenzhen Yinyun; serves 100k+ enterprises.

Eppo — Experimentation and feature flag platform built for data-warehouse-first statistical analysis.

Epsilla — AI API / SDK for Developers tool for developers. Specializes in Vector Database.

Equals — CI/CD for Applications tool for developers. Specializes in Analytics Spreadsheet.

EqualWeb — Accessibility / A11y Testing tool for developers

Independent ad platform (formerly Smart AdServer) offering SSP, DSP and SDK for mobile in-app monetization.

Eraser — No-code / Low-code App Builders tool for developers. Specializes in Technical Diagramming.

Ermetic — Security Scanning / Mobile App Sec tool for developers. Specializes in CIEM/CSPM.

ERPNext — CI/CD for Applications tool for developers. Specializes in ERP.

Errsole — CI/CD for Applications tool for developers. Specializes in Error Tracking.

esbuild — CI/CD for Applications tool for developers. Specializes in JavaScript Bundler.

Escape GraphQL — CI/CD for Applications tool for developers. Specializes in API Security.

Escape.tech — Security Scanning / Mobile App Sec tool for developers. Specializes in DAST / API Security.

ESET Protect — Security Scanning / Mobile App Sec tool for developers. Specializes in EDR/Endpoint Security.

ESLint — Security Scanning / Mobile App Sec tool for developers. Specializes in JavaScript Linter.

Espanso — CI/CD for Applications tool for developers. Specializes in Text Expander.

Espresso — Google's Android UI testing framework for writing reliable instrumented tests in Kotlin and Java.

Esri ArcGIS — Enterprise GIS platform with spatial analytics, feature services, web mapping, and routing APIs.

Estha AI — AI localization platform for translating and adapting software content with context-aware models.

Estuary Flow — Real-time data integration platform with sub-100ms CDC pipelines and built-in schema evolution for streaming.

etcd — CDN / Edge / Acceleration tool for developers. Specializes in Key Value Store.

Etched AI — AI API / SDK for Developers tool for developers. Specializes in AI Hardware.

Ethoca, a Mastercard company, runs a global network that shares fraud and dispute data between issuers and merchants, enabling merchants to refund fraudulent transactions before a chargeback is filed. It exposes Alerts and Consumer Clarity

Ethyca — Developer-first data privacy platform for automating data discovery, consent, and subject request workflows.

ETRIs open Korean AI API hub — ExoBrain NLP, speech recognition, OCR and translation endpoints for research and industry.

EventBridge — CI/CD for Applications tool for developers. Specializes in Event Streaming.

Multimodal data platform powered by Daft, a Python-native distributed query engine for images, video, audio and structured data at scale.

AI platform for personal injury law firms that drafts demand letters and calculates case damages.

E-signature API with REST endpoints for document signing and templates.

EverSQL — CI/CD for Applications tool for developers. Specializes in Query Optimization.

Developer-first payment encryption and tokenization platform combining 3DS, network tokens, and data enrichment.

Evidence — OSS code-based BI tool for writing analytics reports in Markdown with embedded SQL queries and charts.

Evidently — AI API / SDK for Developers tool for developers. Specializes in ML Monitoring.

Evidently AI — AI API / SDK for Developers tool for developers. Specializes in ML Monitoring.

Exa AI — AI API / SDK for Developers tool for developers. Specializes in AI Web Search.

Exabeam — Security Scanning / Mobile App Sec tool for developers. Specializes in SIEM/UEBA.

Exalate — cross-platform issue sync between Jira, ServiceNow, Zendesk, Salesforce, GitHub. Groovy scripting for bidirectional workflow integrations.

Excalidraw — No-code / Low-code App Builders tool for developers. Specializes in Collaborative Whiteboard.

Exceptionless — CI/CD for Applications tool for developers. Specializes in Error Tracking.

execa — CI/CD for Applications tool for developers. Specializes in Process Execution.

Exercism — Free OSS coding practice platform with 70+ language tracks, mentorship, and community-driven exercises.

Exivity — CI/CD for Applications tool for developers. Specializes in FinOps & Cost Management.

ExllamaV2 — AI API / SDK for Developers tool for developers. Specializes in LLM Inference.

Exoscale — CI/CD for Applications tool for developers. Specializes in Cloud Provider.

Exoscale Object Storage — CI/CD for Applications tool for developers. Specializes in Object Storage.

Exotel — Cloud telephony platform in India for call center, IVR, SMS, and WhatsApp business messaging.

Explo — Embeddable analytics and dashboarding platform for SaaS products with white-label customer-facing reporting.

Expo EAS — Cloud build and submission service for React Native apps with OTA updates and code signing.

Expo Updates — Release / App Store Operations tool for developers. Specializes in OTA Updates.

Export SDK — No-code / Low-code App Builders tool for developers. Specializes in PDF Generation API.

Exposed — Secure tunneling and secrets management tool for sharing local development environments with collaborators.

Express Gateway — Developer Portals / API Management tool for developers. Specializes in API Gateway.

Express.js — CI/CD for Applications tool for developers. Specializes in Web Framework.

Document AI platform with specialized vision models for parsing, extraction, splitting and workflow orchestration.

External Secrets — CI/CD for Applications tool for developers. Specializes in Secrets Management.

External Secrets Operator — Security Scanning / Mobile App Sec tool for developers. Specializes in Secrets Management.

Extism — CI/CD for Applications tool for developers. Specializes in WebAssembly Plugin System.

Built-in unit testing framework for Elixir, ships with the standard library and supports async tests, assertions, doctests and tagged test filtering.

eza — CI/CD for Applications tool for developers. Specializes in CLI Utility.

F5 Advanced WAF — Security Scanning / Mobile App Sec tool for developers. Specializes in WAF.

Fable — Accessibility / A11y Testing tool for developers

Fabric — CI/CD for Applications tool for developers. Specializes in Remote Execution.

Clinical genomics interpretation platform with FHIR/REST APIs for variant analysis.

FaceTecs 3D face authentication SDK provides certified liveness detection and face matching using depth data, widely embedded in identity verification platforms for strong anti-spoofing.

Facets.cloud — Platform engineering tool for defining and managing infrastructure blueprints with self-service deployments.

Factory — Code Assistants / Agent Tooling tool for developers. Specializes in ai agents.

Factory Boy — Test Automation / Device Cloud tool for developers. Specializes in Test Data.

AI safety / applied ML platform with Frontier orchestration; APIs for governance.

Failure Flags — CI/CD for Applications tool for developers. Specializes in Chaos Engineering.

Fairwinds Insights — Security Scanning / Mobile App Sec tool for developers. Specializes in Kubernetes Security.

Faiss (Meta) — Open-source library from Meta for efficient similarity search and clustering of dense vectors at scale.

Easy-to-use .NET mocking library focused on a single A.FakeT() API and natural fluent assertions on calls.

Faker — Test Automation / Device Cloud tool for developers. Specializes in Test Data.

Fal.ai — CI/CD for Applications tool for developers. Specializes in Serverless AI / ML Inference.

Falco — Security Scanning / Mobile App Sec tool for developers. Specializes in Runtime Security.

Falcon — CI/CD for Applications tool for developers. Specializes in Web Framework.

Falcon API — CI/CD for Applications tool for developers. Specializes in API Framework.

Falcon LLM (TII) — AI API / SDK for Developers tool for developers. Specializes in LLM.

Fanout — Managed real-time API layer providing WebSocket and HTTP streaming push for API subscriptions.

Faros AI — Engineering intelligence platform aggregating dev tool data into DORA metrics, capacity planning, and delivery insights.

fast-glob — CI/CD for Applications tool for developers. Specializes in File Globbing.

FastAPI — CI/CD for Applications tool for developers. Specializes in Web Framework.

Open-source enterprise AI agent builder by Labring with RAG, workflow orchestration and OpenAI-compatible APIs.

FastHTML — CI/CD for Applications tool for developers. Specializes in Web Framework.

Fastify — CI/CD for Applications tool for developers. Specializes in Backend Framework.

Fastlane — Open-source automation tool for iOS and Android deployment including code signing and app submission.

Fastly — CDN and edge cloud platform with real-time cache purging, edge compute via Compute@Edge, and WAF.

Fastly WAF — Security Scanning / Mobile App Sec tool for developers. Specializes in WAF.

FastMCP — AI API / SDK for Developers tool for developers. Specializes in MCP Framework.

FastPix — Object Storage / Media API tool for developers. Specializes in video api.

FastSpring — Merchant of Record for digital goods and SaaS with global tax handling, subscriptions, and 20+ payment methods.

FastText — AI API / SDK for Developers tool for developers. Specializes in NLP Library.

fastThread — CI/CD for Applications tool for developers. Specializes in Java Profiling.

Australian card payment gateway and PCI-DSS vault — also operates SecurePay for Australian merchants.

Fathom Analytics — Product Analytics tool for developers. Specializes in Privacy Analytics.

Fattmerchant — US subscription-based payment platform for merchants with flat-rate interchange-plus pricing and integrated POS.

Fauna — Globally distributed serverless document database with ACID transactions and relational-like GraphQL API.

FaunaDB — CI/CD for Applications tool for developers. Specializes in Serverless Database.

Fawaterak — Egypt-based payment gateway aggregating cards, Fawry, mobile wallets, and installments for online merchants.

Fawry — Egypt's largest payment network with 300,000+ agent locations supporting bill payments, cards, and mobile wallet transactions.

fd — CI/CD for Applications tool for developers. Specializes in Fast Find.

Feast — AI API / SDK for Developers tool for developers. Specializes in Feature Store.

FeatBit — Feature Flags / Remote Config tool for developers. Specializes in feature management.

Simply beautiful open-source SVG icon set by Cole Bemis with 280+ icons on a 24x24 grid. The original inspiration for the Lucide fork; widely used in developer-facing UI kits.

FeathersJS — CI/CD for Applications tool for developers. Specializes in API Framework.

AI-based self-service feature platform with a Copilot that automates the full AI feature lifecycle from raw data to production pipelines.