All Developer Tools

Octobat — Automated tax compliance, invoicing and VAT accounting for digital businesses

Octomind — Test Automation / Device Cloud tool for developers. Specializes in AI Test Generation.

Octopai — Automated data lineage and catalog platform tracing data from source to BI report across pipelines.

OctoPerf — Test Automation / Device Cloud tool for developers. Specializes in Load Testing.

Octopus Deploy — Release management and deployment automation platform for complex multi-environment pipelines.

Oden — Manufacturing IoT analytics platform for production monitoring, OEE tracking, and quality control on factory floors.

Odigos — Observability / Logging / Tracing tool for developers. Specializes in Auto-Instrumentation.

ofetch — CI/CD for Applications tool for developers. Specializes in HTTP Client Libraries.

Offensive360 — Security Scanning / Mobile App Sec tool for developers. Specializes in SAST Platform.

Ofox — AI agent orchestration platform for building and deploying automated business workflow agents.

Global mobile advertising platform specializing in personified advertising with SDK for in-app brand campaigns.

Oh Dear — CI/CD for Applications tool for developers. Specializes in Uptime Monitoring.

OKKY — Koreas largest developer community with a public Q&A feed, jobs board and event API.

Okta — Enterprise identity cloud with SSO, adaptive MFA, lifecycle management, and API access management for workforce and customers.

Okteto — CI/CD for Applications tool for developers. Specializes in Kubernetes Dev Environment.

Olark — Customer Support SDK / In-app Helpdesk tool for developers. Specializes in Live Chat Widget.

Oligo Security — Runtime application security platform detecting active exploitation of vulnerable open-source dependencies.

OLLaHub — AI API / SDK for Developers tool for developers. Specializes in AI Model Hub.

Ollama — Local LLM runtime for running Llama, Mistral, and other models with an OpenAI-compatible REST API.

OLMo — AI API / SDK for Developers tool for developers. Specializes in Open LLM.

OLOID — AI-based physical and digital identity verification platform for frontline worker authentication using face and mobile.

Opinionated Arch Linux + Hyprland desktop distribution curated by DHH for developers — preconfigured tiling setup.

Omise (Opn) — Southeast Asia payment gateway covering Thailand, Japan, and Singapore with cards, PromptPay, and installment support.

Omnata — Data Integration / ETL / Reverse ETL tool for developers. Specializes in Data Sync.

Omni Analytics — BI and data exploration platform with SQL-first semantic modeling layer and embedded analytics.

Ona — CI/CD for Applications tool for developers. Specializes in Cloud Dev Environments.

Africas largest digital payments network (formerly MFS Africa) connecting 1B+ mobile wallets and 500M bank accounts via API.

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

One Identity — Security Scanning / Mobile App Sec tool for developers. Specializes in PAM/IAM.

OneCompiler — Code Assistants / Agent Tooling tool for developers. Specializes in ide.

OneDev — CI/CD for Applications tool for developers. Specializes in Git Hosting.

Universal managed data lakehouse service built on Apache Hudi with open engines (Flyte, Trino, Ray) for AI/ML workloads.

Oneleet — Compliance Automation tool for developers. Specializes in security compliance.

OneSignal — Push notification, in-app messaging, email, and SMS platform with 2M+ apps using free tier and developer-first SDKs.

OneTrust — Security Scanning / Mobile App Sec tool for developers. Specializes in Privacy & Security Compliance.

OneUptime — OSS full-stack observability platform combining monitoring, incident management, status pages, and on-call.

Onfido — AI-based identity verification platform with Real Identity Platform combining document, biometric, and database checks.

OnlineOrNot — CI/CD for Applications tool for developers. Specializes in Uptime Monitoring.

ONNX Runtime — AI API / SDK for Developers tool for developers. Specializes in Model Inference.

Fiat-to-crypto on-ramp aggregator API routing across 30+ providers for optimal fees and success rates.

Oobeya — Engineering intelligence platform tracking DORA metrics, delivery flow health, and team performance.

OPA (Open Policy Agent) — CI/CD for Applications tool for developers. Specializes in Policy Engine.

OPA Gatekeeper — CI/CD for Applications tool for developers. Specializes in Policy Enforcement.

Opal — Security Scanning / Mobile App Sec tool for developers. Specializes in Authorization.

Open Collective — Transparent funding platform for open-source projects and communities with public finances.

Open Interpreter — AI API / SDK for Developers tool for developers. Specializes in AI Code Interpreter.

Open Policy Agent (OPA) — Security Scanning / Mobile App Sec tool for developers. Specializes in Policy Engine.

Open Service Mesh — CI/CD for Applications tool for developers. Specializes in Service Mesh.

Open Web Analytics — CI/CD for Applications tool for developers. Specializes in Web Analytics.

Open WebUI — AI API / SDK for Developers tool for developers. Specializes in LLM Interface.

OpenAgents — AI API / SDK for Developers tool for developers. Specializes in AI Agent Framework.

OpenAI — AI platform API offering GPT-4, DALL-E, Whisper, and embeddings models via REST and Python/Node SDKs.

OpenAI Moderation API — Free endpoint for classifying text into harmful categories including violence and hate speech.

OpenAPI Generator — Developer Portals / API Management tool for developers. Specializes in sdk generation.

openapi-typescript — CI/CD for Applications tool for developers. Specializes in OpenAPI Tooling.

OpenBao — open source fork of HashiCorp Vault maintained by the Linux Foundation for secrets management.

Chinese cloud ML platform offering GPU containers, AutoML, dataset hub and model serving for AI + HPC workloads.

Openblocks — CI/CD for Applications tool for developers. Specializes in Low Code Platform.

OpenCage — Geocoding API aggregating OpenStreetMap and other sources with batch geocoding and GDPR compliance.

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

OpenCost — CI/CD for Applications tool for developers. Specializes in Kubernetes Cost Management.

Chinese ML platform and open-source model community (CSGHub) for training, fine-tuning and serving.

OpenCTI — Security Scanning / Mobile App Sec tool for developers. Specializes in Threat Intelligence Platform.

OpenCV — CI/CD for Applications tool for developers. Specializes in Computer Vision.

OpenEBS — CI/CD for Applications tool for developers. Specializes in Kubernetes Storage.

OpenFaaS — CI/CD for Applications tool for developers. Specializes in Serverless Functions.

OpenFeature — CNCF OSS standard for feature flag management providing a vendor-neutral SDK specification.

OpenFGA — Identity / Auth / User Management tool for developers. Specializes in Fine Grained Authorization.

Instant cross-border payment infrastructure with 24x7 FX powered by stablecoin settlement.

OpenGrok — Fast, powerful source code search and cross-reference engine from Oracle for large codebases.

OpenHands — Open-source autonomous software engineering agent (formerly OpenDevin) for code, shell, and browser tasks.

Open cross-platform IAP specification unifying types, error codes and purchase flows across iOS StoreKit and Google Play Billing.

OpenKruise — CI/CD for Applications tool for developers. Specializes in Kubernetes Workload Management.

Open-source OpenTelemetry-native observability platform for GenAI, LLM and AI application stacks.

OpenLLMetry — AI API / SDK for Developers tool for developers. Specializes in LLM Observability.

OpenMetadata — Data Integration / ETL / Reverse ETL tool for developers. Specializes in Data Catalog.

OpenMeter — Payment Gateway / PSP tool for developers. Specializes in Usage-Based Billing.

OpenMLDB — AI API / SDK for Developers tool for developers. Specializes in ML Feature Platform.

OpenObserve — OSS Rust-based observability platform for logs, metrics, and traces with 140x lower storage cost than Elasticsearch.

OpenPanel — CI/CD for Applications tool for developers. Specializes in Product Analytics.

OpenPipe — AI API / SDK for Developers tool for developers. Specializes in LLM Fine tuning.

Brazilian Pix payment gateway with REST API, SDKs for PHP/Ruby/Java/React, and real-time reconciliation for businesses.

openpyxl — CI/CD for Applications tool for developers. Specializes in Excel Processing.

OpenReplay — OSS self-hosted session replay platform with DevTools-style inspection and co-browsing capabilities.

OpenRouter — AI API / SDK for Developers tool for developers. Specializes in llm routing.

OpenRouteService — Open-source routing API for directions, isochrones, and matrix calculations based on OpenStreetMap.

OpenSearch — CI/CD for Applications tool for developers. Specializes in Search & Analytics.

OpenStatus — Observability / Logging / Tracing tool for developers. Specializes in Status Page.

OPENSURVEYs mobile research APIs and SDKs for in-app surveys, NPS and panel sampling.

OpenTelemetry — Observability / Logging / Tracing tool for developers. Specializes in telemetry standard.

OpenTofu — CI/CD for Applications tool for developers. Specializes in Infrastructure as Code.

OpenVAS — Security Scanning / Mobile App Sec tool for developers. Specializes in Vulnerability Scanner.

OpenVidu — open-source platform for video conferencing apps built on Kurento

OpenVINO — AI API / SDK for Developers tool for developers. Specializes in ML Inference.

OpenVox — CI/CD for Applications tool for developers. Specializes in Infrastructure as Code.

Programmatic ad exchange and SSP serving mobile, web, and CTV with high-scale real-time bidding infrastructure.

Alibabas open-source edge-native Kubernetes extension; CNCF Sandbox project for cloud-edge computing.

OpenZeppelin — Security library and auditing framework for Solidity smart contracts with battle-tested reusable contract modules.

OpenZiti — Open-source zero-trust overlay network embedding application-level security directly into the software fabric.

Opik — Observability / Logging / Tracing tool for developers. Specializes in ML Experiment Tracking.

Southeast Asia payment orchestration platform (formerly Omise) connecting PSPs across Asia and North America.

Opper AI — AI API / SDK for Developers tool for developers. Specializes in ai infrastructure.

Opsgenie — Observability / Logging / Tracing tool for developers. Specializes in Incident Management.

Opslane — AI-powered alert noise reduction platform for on-call teams, correlating incidents across monitoring tools.

OpsLevel — Internal developer portal and service catalog for tracking microservice ownership and software maturity.

Optic — CI/CD for Applications tool for developers. Specializes in Documentation.

Open payment orchestration platform providing centralized routing and provider management for merchants.

Optimizely — Experimentation and feature management platform with web, full-stack, and content testing.

Optiv — Security Scanning / Mobile App Sec tool for developers. Specializes in Security Solutions.

Optuna — CI/CD for Applications tool for developers. Specializes in MLOps.

Opus Clip — AI API / SDK for Developers tool for developers. Specializes in Video AI.

Oracle AI — AI API / SDK for Developers tool for developers. Specializes in Enterprise AI.

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

Oracle Container Registry — CI/CD for Applications tool for developers. Specializes in Container Registry.

Orama — CI/CD for Applications tool for developers. Specializes in Search Engine.

ORAS — CI/CD for Applications tool for developers. Specializes in Container Registry.

Orb — Developer-first subscription and usage billing platform with a flexible pricing model API and Stripe-compatible webhooks.

Orbit — Developer community management platform for tracking contributor activity, engagement, and community growth.

Orbit — Developer community growth platform (now closed) for tracking member activity across channels.

OrbStack — Fast macOS container and Linux VM runtime replacing Docker Desktop with lower memory and CPU footprint.