Best Self-hosted Developer Tools tools in 2026

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

MITActively maintained

Alternative to:

CodeSandbox+5

Hook0 is an open-source Webhooks-as-a-Service platform to send events via a single API call with subscriptions, retries, persistence, and monitoring.

Actively maintained

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Svix+5

RunsOn deploys scalable, ephemeral GitHub Actions runners in your AWS account with spot/on-demand support, integrated S3-backed caching, and workflow compatibility.

A Python CLI and TUI tool to search and download torrents via Jackett or Prowlarr, using Libtorrent and a modern terminal UI.

Gerrit Code Review is a web-based code review and workflow tool for Git that supports inline comments, access controls, and integrated Git hosting via SSH/HTTPS.

Apache-2.0Actively maintained

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Gerrit Code Review+8

Lightweight single-binary Rust pastebin and file-upload server with expiring and one-shot links, URL shortening, MIME detection and simple token auth.

MITActively maintained

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Pastebin+5

Kottster is an open-source, self-hosted Node.js admin panel that generates table views, dashboards, and custom pages on top of your existing database.

Apache-2.0Slowing down

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Retool+5

Open-source web app to create, edit, visualize, and share Docker Compose files with an interactive diagram-based GUI and import/export support.

MITSlowing down

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Docker+2

Self-hosted image, GIF, MP4, and text paste hosting with a simple API, on-the-fly resizing, and URL-based transformations. File-based storage; no database required.

Actively maintained

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Imgur+19

Bencher is a continuous benchmarking suite with a CLI, API server, and web console to track benchmark results over time and catch performance regressions in CI.

Actively maintained

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CodSpeed+1

wastebin is a minimal, self-hostable pastebin with a Rust/axum backend, SQLite storage, syntax highlighting, optional encryption, and expiration/burn-after-read controls.

MITActively maintained

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Pastebin+4

Managarr is a Rust-based TUI and CLI to manage Servarr apps like Radarr and Sonarr, enabling library management and automation from the terminal.

A fast, minimalist pastebin written in Rust with syntax highlighting and no database, comments, or social features.

Slowing down

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Pastebin+5

Atheos is a self-hosted, web-based cloud IDE and code editor with a small footprint, featuring plugins, multi-user support, and built-in Git integration.

Actively maintained

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Replit+11

dpaste is an open source Django pastebin for publishing and sharing text snippets with optional self-hosting via standard Django or Docker deployments.

MITSlowing down

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Pastebin+5

Para is an open-source, Java-based multitenant backend framework providing a RESTful JSON API, full-text search, distributed caching, and flexible authentication for web, mobile, IoT and prototype apps.

Apache-2.0Actively maintained

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Firebase+8

Self-hostable pastebin focused on privacy, with browser-side end-to-end encryption, paste history, expiring pastes, and file drag-and-drop.

AGPL-3.0Actively maintained

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Pastebin+5

Graphweaver turns multiple databases and APIs into a single, code-first GraphQL API with an extensible admin UI and fine-grained access control.

Actively maintained

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Hasura+10

Python library to manage RSS/Atom/JSON feeds with read-state, tagging, filtering, and full-text search.

Capture, inspect and debug webhooks and HTTP requests with customizable responses, real-time WebSocket UI, and memory/Redis/filesystem storage options.

MITActively maintained

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Webhook.site+2

Self-hosted Go web app to share and store text snippets, files, links and a Markdown notepad over a local network with PWA support and configurable expirations.

MITSlowing down

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Apple AirDrop+10

TypeScript-based self-hosted deployment platform that clones, builds, and deploys apps from Git repositories using Docker Compose.

AGPL-3.0Actively maintained

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Heroku+4

Open-source event tracker for tech products: ingest key events, send push notifications, run webhook actions, and monitor critical workflows in real time.

AGPL-3.0Actively maintained

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Healthchecks.io+10

Express middleware that generates REST collection APIs from JSON Schema with a Django-like admin UI; supports MongoDB, PostgreSQL or JSON-file storage.

MITActively maintained

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Directus Cloud+10

Lightweight Go service that forwards events from a standalone Frigate NVR to Discord, Matrix, SMTP, webhooks and many services (via Apprise). Supports MQTT or direct API and Docker.

MITSlowing down

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Pushover+3

Ghostboard is a minimal real-time text board that syncs text across devices via WebSocket and exposes a REST API and CLI for updates and retrievals.

MITSlowing down

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Pastebin+4

Privacy-first string toolkit with 50+ converters and formatters for developers.

A high-performance, URL-based image transformation service written in Go, enabling on-the-fly resizing, format changes, and CDN-friendly delivery.

MITSlowing down

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Mapbox+1

Self-hosted HTTP API to render web pages to PNG with configurable viewport, caching, Playwright-based parallel rendering, and S3/CouchDB/filesystem storage.

MITActively maintained

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Urlbox+4

Rust-based, gitweb/cgit-like web interface for browsing bare Git repositories with RocksDB indexing, on-demand gitoxide loading, and Docker/Nix support.

WTFPLSlowing down

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SourceForge+6