Best Self-hosted Developer Tools tools in 2026

Judge0 CE is an open-source, sandboxed online code execution system with an HTTP JSON API for running untrusted code in many programming languages at scale.

Efficient, minimal collaborative code editor with real-time editing in the browser, OT-based syncing, WebSocket communication, and optional SQLite persistence.

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Replit+5

Automates music downloads from NZB/torrent feeds and auto-manages library tagging, renaming, and indexing.

bknd is a lightweight Firebase/Supabase alternative that provides a modular backend with REST API, admin UI, auth, media, and workflows, deployable across many JS runtime...

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Firebase+9

Svix is an open-source webhook service that handles event ingestion, signing, retries, and endpoint management with scalable delivery and client libraries.

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Svix+6

Open-source, self-hosted tool to provision servers and deploy PHP apps with database, SSL, firewall, cron, services, monitoring, workflows, plugins, and API.

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Laravel Forge+11

Self-hosted pastebin powered by Git. Create, share and manage public, unlisted or private code snippets with syntax highlighting, Git push/pull, OAuth logins and Docker/H...

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Pastebin+6

Canine is an open source Kubernetes deployment platform that provides a Heroku-like PaaS experience with Git-driven deploys, web UI management, and built-in SSL and secre...

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Heroku+10

Convoy is a cloud-native webhooks gateway to ingest, persist, debug, and reliably deliver incoming and outgoing webhooks with retries, rate limiting, and security control...

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Svix+2

Open-source web and API service to create encrypted, single-view links for sharing secrets with configurable expiry and optional passphrase protection.

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Onetime Secret+6

Open-source API gateway for securing, aggregating, and transforming microservice APIs with a stateless, high-throughput Go-based runtime and declarative configuration.

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Amazon API Gateway+7

SQLPage is a fast SQL-only web app builder that turns .sql files into interactive web pages and APIs on top of your existing database.

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Retool+19

Open-source form and data management platform with a drag-and-drop builder, embeddable form renderer, and REST API for submissions, resources, and workflows.

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Formstack+12

Self-hosted web application to track and manage 3D-printing filament spools with a REST API, WebSocket updates, label/QR printing and integrations for common printer fron...

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SimplyPrint+6

ByteStash is a self-hosted snippet manager for creating, editing, and filtering code snippets with secure storage in SQLite and an optional API with Swagger UI.

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SnippetsLab+2

Websoft9 is a web-based Linux panel and lightweight PaaS for deploying, running, and operating hundreds of open-source applications on your own server.

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Cloudron+19

Fusio is an open source API management platform for building, securing, and operating REST APIs, with a web backend, developer portal, and SDK generation.

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Amazon API Gateway+5

ARA records Ansible playbook runs and provides searchable reports via a CLI, REST API, and local-first web interface to troubleshoot and understand automation results.

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Datadog Log Management+5

Yaade is a self-hosted, collaborative API development environment that lets teams share API collections, run tests, and import from OpenAPI or Postman.

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Postman+10

Lightweight open-source feature flag system with a relay proxy, OpenFeature support, file/cloud retrievers, and exporters for usage data.

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Unleash+4

Self-hostable, end-to-end encrypted note and file sharing with zero-knowledge storage, optional passwords, expiration (TTL), and delete-after-reading links.

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Privnote+13

Open-source, production-ready OCI-native container image and artifact registry with single-binary deployment, S3/local storage, web UI and CLI.

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Docker Hub+3

OpenRouteService is an open-source REST API providing routing, isochrones, matrices, geocoding, POIs, elevation and vehicle-optimization services built from OpenStreetMap...

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NextBillion.ai Directions API

Open-source, self-hosted feature flag management platform with progressive rollouts, targeting rules, A/B testing, audit logs, and APIs for automated releases.

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LaunchDarkly+4

DreamFactory generates secure, documented REST APIs for SQL/NoSQL databases and other services, with a web admin UI, authentication, and role-based access control.

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Hasura+7

MongooseIM is an open-source Erlang-based XMPP server designed for large-scale messaging, offering multi-tenant deployment, REST/GraphQL APIs, push, and robust observabil...

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Firebase+4

Review Board is a web-based tool for code and document reviews, with rich diff viewing, threaded discussions, and integrations with many version control and CI systems.

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Gerrit Code Review+6

Open-source multiplayer modification and engine for Grand Theft Auto: San Andreas that adds synchronized networking, Lua scripting, resource-based content, and a server b...

Semaphore is an open-source CI/CD platform to automate builds, tests, and deployments with YAML pipelines, parallel execution, and container-friendly workflows.

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Semaphore CI+12

Open-source, browser-based code playground that runs entirely client-side; supports 90+ languages and embeddable demos, with Docker-based self-hosting.

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CodeSandbox+5