Alternatives to Discontinued Insomnia OSS

historical guide · 2 editor-selected alternatives · Insomnia OSS overview →

source: tools.alternatives · stored order · active records only; review scores are annotations and never change membership or order

A directional evidence panel appears only when the substitute rationale, trade-offs, sources, and verification date have been recorded. Older selections without that panel remain visible but are unclassified under the new evidence contract.

discontinued Kong Inc. removed the local-only, open-source option in September 2023 (v8.0), requiring mandatory cloud accounts and login. The GitHub repo was flooded with angry issues and the app's rating plummeted. Developers mass-migrated to Bruno and Hoppscotch. Kong partially reversed course, but trust was destroyed and the OSS community never returned.

Bruno

78/100open sourceexplicit relation

Open-source API client for testing REST, GraphQL, and gRPC APIs as a lightweight, privacy-focused alternative to Postman. Stores API collections as plain files in your Git repository for easy version control and team collaboration. Features environment variables, scripting, collection runner, and a declarative syntax called Bru. Offline-first with no cloud account required. Available on macOS, Windows, and Linux. 44K+ GitHub stars and growing rapidly among developers leaving Postman.

Open-source and offline-first Git-friendly API client with an MIT-licensed core ($0 free forever) for unlimited local REST, GraphQL, and gRPC testing. Commercial editions support sustainable development: Pro tier is $6/user/month billed annually ($72/year; legacy Golden Edition $19 lifetime grandfathered) with deep Git tooling and visual assertion builders; Ultimate tier is $11/user/month billed annually ($132/year) with SAML SSO, centralized licensing, and priority enterprise support.Review →

Postman

82/100freemiumexplicit relation

The most popular API platform used by 30M+ developers worldwide. Build, test, and document APIs with collections, environments, automated testing, and team collaboration. Features mock servers, monitoring, API design tools, and a vast public API network. The industry standard for API development workflows from prototyping through production testing and documentation.

Postman operates on a per-user tiered SaaS freemium model. Free plan ($0/mo) supports up to 3 users, basic API client (REST/GraphQL/gRPC/WebSocket), 1,000 Cloud API calls/mo, and 25 Postbot queries. Basic is $14/user/mo billed annually ($19 billed monthly) for unlimited users, 10 collections, and 10k calls. Professional is $29/user/mo billed annually ($39 monthly) offering SAML SSO, 100k calls, private workspaces, and Postbot AI. Enterprise is $49/user/mo billed annually featuring advanced API Governance, SCIM provisioning, private domains, SOC 2 Type II, and 250k+ calls.Review →

Open-source Insomnia OSS alternatives

Bruno — see all open-source developer tools.

Free Insomnia OSS alternatives

Postman offer a free plan or free tier.

More Productivity & Workflow tools

same category, not editor-selected alternatives — see how Insomnia OSS compares →

Grok BotGrok Bot is SpaceXAI's beta workspace for persistent AI teammates that use apps, websites, files, terminals, plugins, and MCP on a user-scoped cloud computer. Bots can learn routines, coordinate in parallel, and, when enabled by team policy, launch Cursor Cloud Agents that work on code in isolated environments and return pull requests and verification artifacts.RaycastBlazingly fast, extensible productivity launcher for macOS that replaces Spotlight and serves as a keyboard-driven command center. Includes instant app launching, clipboard history, snippet management, window management, calculator, and a built-in AI chat with multiple models. Extension store with 1,000+ community integrations (GitHub, Jira, Linear, Docker). Script commands for shell automation, plus a React/TypeScript API for custom extensions.LinearFast, opinionated project management for software teams with a keyboard-first interface, cycles, roadmaps, and deep GitHub/GitLab integration. Used by Vercel, Anthropic, and Coinbase. The modern Jira alternative that engineering teams actually enjoy using, with a clean design and responsive UI that makes issue tracking feel effortless rather than burdensome.ObsidianKnowledge management app based on local Markdown files with powerful linking and graph visualization. Bidirectional links, graph view, canvas for spatial thinking, templates, daily notes, and 5,000+ community plugins. All data is stored as plain .md files with no vendor lock-in. Custom themes, Vim mode, and Dataview support database-like queries. Sync and Publish are paid add-ons; the core app remains free for personal use.ZapierThe most popular no-code automation platform connecting 9,000+ apps and app connections to automate workflows without writing code. Features multi-step Zaps with conditional logic, AI Copilot for natural language workflow creation, Tables, Forms, and MCP integration for AI orchestration. Task-based pricing with a free tier at 100 tasks/month. Used by businesses from solo operators to enterprise teams for eliminating repetitive work across their software stack.AppsmithAppsmith is an open-source low-code platform for building internal tools, admin panels, and dashboards. Drag-and-drop UI builder with 45+ widgets, connects to any database or API. Supports JavaScript for custom logic. Self-hostable alternative to Retool with 35K+ GitHub stars.OpenWikiOpenWiki is LangChain’s open-source CLI for generating and maintaining an agent-focused wiki inside a codebase. It can create an openwiki/ documentation folder, update it from repository changes, add guidance to AGENTS.md or CLAUDE.md, and run via an interactive CLI or daily GitHub Action so coding agents have durable context without stuffing every detail into prompts.Agent OrchestratorAgent Orchestrator manages fleets of parallel AI coding agents, each working in isolated git worktrees. It handles CI failures, code review comments, and pull request coordination while keeping humans involved for judgment calls. The current canonical repository is maintained under Untrivial AI.JeanJean is an open-source desktop dev environment for AI agents from coolLabs (the team behind Coolify). It runs multiple coding agents — Claude Code, Codex, and others — in parallel inside isolated git worktrees, each with its own chat session and terminal. Magic git commands handle commits, PR descriptions, code reviews, and merge conflicts with AI assistance, while built-in Linear and GitHub integrations load issue context into every session.

FAQ

Which Insomnia OSS alternative is listed first?

Bruno is first in the editor-selected list of 2 Insomnia OSS alternatives and carries an editorial review score of 78/100. The stored order is editorial; review scores do not determine membership or position.

Are there open-source Insomnia OSS alternatives?

Yes — Bruno are open source.

Are there free Insomnia OSS alternatives?

Yes — Postman offer a free plan or free tier.

What should I use instead of Insomnia OSS?

Insomnia OSS has been discontinued — Kong Inc. removed the local-only, open-source option in September 2023 (v8.0), requiring mandatory cloud accounts and login. The GitHub repo was flooded with angry issues and the app's rating plummeted. Developers mass-migrated to Bruno and Hoppscotch. Kong partially reversed course, but trust was destroyed and the OSS community never returned. The first editor-selected replacements are Bruno, Postman.