Insomnia
HTTP and GraphQL Client
Install with Homebrew
brew install --cask insomnia
Insomnia — Official Website
Quick Take: Insomnia
In August 2026 Insomnia looks like a real Postman alternative again. Essentials covers small teams, Pro stays predictable at $12 per user per month, and Konnect sync in version 13 is worth it if your APIs already run on Kong. If you want pure Git-local files, Bruno is simpler. If you need the biggest marketplace, Postman still wins. For Kong shops and MCP-aware work, Insomnia belongs on the shortlist.
Best For
- •Full-Stack Developers needing versatile protocol support
- •API Architects utilizing OpenApi design-first workflows
- •Teams integrating with Kong Gateway
What is Insomnia?
Insomnia is Kong's open-core API client for designing, debugging, mocking, and testing HTTP, gRPC, GraphQL, WebSocket, Socket.IO, SSE, SOAP, and, new in 2026, MCP clients. It is still actively developed. On 16 June 2026 Kong announced Insomnia 13 with native Kong Konnect integration, so collections can discover and sync routes, auth, and environments from Konnect with a personal access token instead of stale OpenAPI imports. Pricing as listed on insomnia.rest/pricing in August 2026 is seat-based. Essentials is $0 per user per month and includes Git Sync for up to 3 users, unlimited cloud and local projects, Inso CLI, unlimited collection runs and environments, 1,000 mock requests per month, E2EE, custom linting, plugins, and AI quality-of-life features. Pro is $12 per user per month on the annual toggle (the page advertises about 17 percent savings versus monthly) with unlimited Git Sync users, orgs, RBAC, and 10,000 mock requests per month. Enterprise is $45 per user per month, self-serve to 50 seats, adding Konnect integration, SSO and SCIM, storage mandates, domain capture, vault integrations for AWS, GCP, HashiCorp, and Azure, unlimited mocks, and SOC 2 evidence access. A local-only Scratch Pad remains free forever without login. On Mac, Insomnia ships as a desktop app for Apple Silicon and current macOS including Tahoe 26.x. In the 2026 API-tooling market the usual competitors are Postman, Bruno, Hoppscotch, HTTPie Desktop, and Paw/RapidAPI. Insomnia's edge is Kong and Konnect alignment plus a free Essentials tier that feels credible again after the earlier cloud-sync controversies. In practice, Mac API teams keep Insomnia next to curl and httpie. Secrets live in vault-backed Enterprise environments or local dotenv-style env groups, Git Sync collections back contract tests, and Inso CLI fails the pipeline when lint or test suites regress. After the growing pains of the Kong acquisition era around mandatory accounts, the 2026 packaging restores a usable free tier and a clear local Scratch Pad escape hatch.
Architecture: The Evolution of Insomnia
Insomnia pairs a cross-platform desktop client with optional cloud collaboration and first-party Kong platform hooks. Where data lives, whether Scratch Pad, local project, Git remote, Insomnia cloud, or Konnect-sourced, decides both your security posture and which invoice you get.
History & Background
Founded in 2015 by Gregory Schier as a side project, Insomnia started as a response to Postman's slow, cluttered UI. It picked up a following for simplicity. In 2019 Kong Inc. acquired it to strengthen its open-source portfolio. Late 2023 was rough: version 8.0 forced cloud sync and the community pushed back, so Kong reintroduced local-only modes in 8.3. By 2026 the tool has matured past version 12 and settled into a privacy-respecting, enterprise-ready client.
How It Works
Insomnia is an Electron app that wraps a Node.js backend with a React frontend. That lets the desktop app and the inso CLI share code. The request engine uses libcurl bindings for broad protocol support and performance, avoiding browser fetch limits. Data sits in a local NeDB (embedded JSON) or encrypted SQLite for the local vault. The plugin API exposes Request and Response objects in JavaScript, so you can modify traffic in flight.
Ecosystem & Integrations
The ecosystem centers on the Plugin Hub and Kong connectivity. More than 350 community plugins are available via NPM, from Insomnia Plugin Faker for test data to AWS Signature v4 for auth. Tight coupling with Kong Konnect lets teams spot drift between local specs and what the gateway actually serves. That makes Insomnia useful for API governance, not just ad hoc testing.
Future Development
Looking ahead through 2026, the focus is AI and collaboration. Insomnia AI is expected to move from beta to general availability, offering self-healing tests that adapt when contracts shift slightly. Deeper Kubernetes integration is also planned, so developers can debug traffic inside the cluster by tunneling through the app.
Key Features
Multi-Protocol API Debugging
Build and send REST, gRPC, GraphQL, SOAP, WebSocket, Socket.IO, and SSE requests with environments, pre-request/after-response scripting, and collection runner support. Unlimited collection runs are included on every published plan.
Kong Konnect Sync (Insomnia 13)
Enterprise/Konnect-connected workflows authenticate with a Konnect PAT to pull live endpoints, routes, and auth settings into Insomnia so collections track the gateway source of truth. Announced 16 June 2026 as the headline Insomnia 13 platform story.
Git Sync & Cloud Collaboration
Essentials includes unlimited Git Sync projects for up to three users; Pro unlocks Git Sync for all seats plus unlimited organizations and RBAC. Native Insomnia cloud sync and end-to-end encryption remain available for teams that prefer managed storage.
API Design, Mocking & Inso CLI
Edit OpenAPI specs with live preview and linting (custom rules on paid/Essentials feature list), spin up mock servers (1k free req/mo on Essentials, 10k on Pro, unlimited on Enterprise; overage $10 per 25k), and automate via Inso CLI in CI.
MCP Clients & AI QoL Features
The current pricing matrix lists MCP client creation with OAuth including Dynamic Client Registration, plus AI quality-of-life features on Essentials and above. That positions Insomnia for API and agent workflows, not just REST debugging.
Scratch Pad & Local-First Escape Hatch
Developers who refuse accounts can download Insomnia and use the local-only Scratch Pad free forever. Enterprise can further mandate local, Git, or cloud project storage for compliance.
Who Should Use Insomnia?
1Frontend React Developer
A Frontend Developer is building a dashboard that consumes a complex GraphQL API. They are struggling with a specific query that returns a 'Bad Request' error in their React app. Using Insomnia, they import the schema directly from the staging URL. The introspection feature immediately lights up, providing autocomplete for available fields. They construct the query in Insomnia's GraphQL editor, which highlights a deprecated field red. After fixing the query and successfully fetching the data, they use Insomnia's 'Generate Code' feature to instantly copy the exact `fetch` or `Apollo Client` syntax needed for their component. This workflow saves them hours of trial-and-error debugging within the browser console.
2QA Automation Engineer
A QA Engineer needs to ensure that the weekly release of the company's payment microservice doesn't break existing functionality. Instead of writing a new Selenium script, they use Insomnia's 'Unit Testing' tab. They create a test suite that chains a login request, a payment initiation, and a transaction verification. They write assertions in JavaScript (Chai syntax) to verify that the status code is 200 and the transaction ID is present. Once the suite passes locally, they export the configuration via the `inso` CLI and add it to the Jenkins pipeline. Now, every pull request automatically runs these Insomnia tests, blocking bugs before they reach production.
3Backend API Architect
An Architect is designing a new User Service and wants to adhere to the OpenAPI 3.1 standard. They start in Insomnia's 'Design' tab, writing the YAML specification from scratch. As they define the `GET /users/{id}` endpoint, Insomnia's real-time linter warns them that they forgot to define a default error response. They correct this immediately. To get feedback from the mobile team, they don't need to deploy a server yet; they simply start the 'Mock Server' built into Insomnia based on the spec. The mobile developers can now hit the mock endpoint to start their work, while the architect proceeds to implement the actual Go backend.
How to Install Insomnia on Mac
Download the macOS build from insomnia.rest or install via Homebrew cask if you prefer CLI provisioning. Apple Silicon and Intel are supported; use the current stable build on macOS Sequoia or Tahoe 26.x. Sign-in is optional if you only need Scratch Pad.
Install via Homebrew (Recommended)
For the fastest installation and easy updates, open your Terminal and run: brew install --cask insomnia
Manual DMG Installation
Alternatively, visit the official download page at insomnia.rest/download, select 'Download for macOS', and drag the Insomnia.app file into your Applications folder.
Initial Launch & Permissions
Open Insomnia from Spotlight. On the first run, macOS Gatekeeper may verify the developer signature. Click 'Open' and grant network permissions if prompted.
Pro Tips
- • Pin Insomnia to your Dock for quick access during development sprints.
- • Immediately check for updates (Insomnia > Check for Updates) to ensure you have the latest protocol support.
- • If you plan to use the CLI, verify installation by running
inso --versionin your terminal.
Configuration Tips
Optimize for Dark Mode & Font Legibility
Go to Preferences > General. In 2026, the 'Hyper' and 'Material' themes are popular. Ensure 'Follow OS Theme' is checked. Crucially, change the Editor Font to a nerd-font like 'JetBrains Mono' or 'Fira Code' with ligatures enabled. This makes reading JSON payloads and YAML specs significantly easier on the eyes during long sessions.
Set Up Local Vault for Privacy
If you are working on sensitive projects, navigate to Preferences > Data. Ensure that 'Scratch Pad' is your default start screen. Enable 'Local Vault' storage to ensure that your collections and environment variables are stored strictly on your Mac's SSD (~/Library/Application Support/Insomnia) and are never accidentally synced to the cloud without explicit consent.
Configure Proxy and Certificates
For corporate environments with strict firewalls, go to Preferences > Network. Configure your HTTP/HTTPS proxy settings here. If you are testing local HTTPS endpoints with self-signed certificates, uncheck 'Validate Certificates' to avoid constant SSL errors, or load your company’s CA certificate directly into the 'Client Certificates' section.
Prefer Scratch Pad for throwaway probes
When experimenting with an unknown MCP server or a one-off webhook, use Scratch Pad so nothing lands in a shared org by accident. Promote the request into a Git Sync project only after auth and assertions stabilise.
Watch mock request quotas
Essentials includes 1,000 mock requests per month and Pro 10,000 before $10/25k overage. Point CI smoke tests at dedicated mocks and cache predictable responses locally when possible.
Alternatives to Insomnia
The API client market in 2026 is crowded. Depending on whether you need shared workspaces or light, local-first speed, these are the usual alternatives to Insomnia.
Postman
Bruno
Hoppscotch
Paw / RapidAPI Client
Pricing
Essentials: $0 per user/month , Git Sync for up to 3 users, unlimited cloud/local projects, Inso CLI, unlimited collection runs and environments, 1,000 mock server requests/month (then $10 per 25,000), E2EE, custom linting, plugins, AI QoL features. Pro: $12 per user/month (annual pricing toggle; ~17% savings vs monthly) , everything in Essentials plus unlimited Git Sync users, unlimited organizations, RBAC, 10,000 mock requests/month. Enterprise: $45 per user/month (self-serve up to 50 users; contact sales above) , Kong Konnect integration, SSO (SAML/OIDC) & SCIM, storage mandates, domain capture, enterprise support, SOC 2 report access, native vaults (AWS, GCP, HashiCorp, Azure), unlimited mocks. 14-day Enterprise trial available; Scratch Pad remains free without login.
Pros
- ✓Generous Essentials free tier with CLI, mocks, and multi-protocol clients
- ✓Native Kong Konnect sync in Insomnia 13 reduces stale collection drift
- ✓Clear seat pricing ($0 / $12 / $45) without surprise request metering on collection runs
- ✓Scratch Pad preserves local-only workflows for security-sensitive Macs
- ✓Plugin ecosystem (350+ community plugins cited by Kong) for custom auth and tooling
Cons
- ✗Git Sync collaborator limits on Essentials push growing teams to Pro quickly
- ✗Mock request caps on free/Pro can surprise high-traffic contract-testing setups
- ✗Heavier Electron-style desktop footprint versus ultra-light alternatives like Bruno
Community & Support
Kong maintains Insomnia docs at docs.insomnia.rest, product marketing on konghq.com/products/kong-insomnia, and release notes through Kong press and blog channels. Developer chatter on X and Reddit in 2026 tends to split three ways: relief that a real free tier and Scratch Pad still exist, interest in Konnect sync for gateway-centric teams, and comparisons with Bruno's Git-only approach. Support steps up from email on lower plans to Kong Customer Success and Professional Services on Enterprise. Plugin authors still add auth helpers and custom importers through the open plugin model.
Video Tutorials
Getting Started with Insomnia
More Tutorials
Insomnia REST Client Tutorial
insidewebdev • 35.0K views
Insomnia: The Best API Testing Tool for Developers
CodeSalad • 17.0K views
How to install Insomnia
Navyaprabha Rajappa • 303 views
Frequently Asked Questions about Insomnia
About the Author
Expert Tips for Insomnia
Kong’s June 2026 messaging frames Insomnia as an API + AI development surface tied to Konnect, not merely a REST GUI, matching how platform teams talk about MCP and gateway-synced collections.
Practitioners comparing clients in 2026 still cite Bruno for Git purity and Postman for org inertia; Insomnia wins shortlists when the company already standardised on Kong.
Related Technologies & Concepts
Sources & References
Fact-CheckedLast verified: Aug 9, 2026
Key Verified Facts
- Insomnia Essentials is $0/user/month; Pro is $12/user/month (annual toggle with ~17% savings); Enterprise is $45/user/month.[cite-1, cite-6]
- Kong announced Insomnia 13 integration with Kong Konnect on 16 June 2026 for live endpoint discovery and sync.[cite-3, cite-2]
- Essentials includes 1,000 mock server requests per month; Pro includes 10,000; Enterprise unlimited.[cite-1]
- Scratch Pad is a free local-only mode that does not require login.[cite-1, cite-4]
- 1Insomnia Pricing
Accessed Aug 9, 2026
- 2Kong Insomnia product page
Accessed Aug 9, 2026
- 3Insomnia 13 + Kong Konnect integration announcement
Accessed Aug 9, 2026
- 4Insomnia homepage
Accessed Aug 9, 2026
- 5Insomnia documentation
Accessed Aug 9, 2026
- 6Insomnia Pricing (2026) verified capture
Accessed Aug 9, 2026
Research queries: Insomnia Mac 2026