- Where it sits in a bigger vendor's stack
- What you keep if you stay
- Five questions to answer before you shortlist
- All seven in one view
- Requests stored as files you own
- Inside your code editor
- Open source and lightweight
- Desktop and terminal clients
- Solo developers and teams need different things
- A full platform for bigger teams
- Moving your collections over
- Frequently asked questions
Leave Insomnia when its direction or sign-in model stops suiting you. A Git-native or local-first client suits teams who want requests stored as files, an editor extension suits people who never want to leave their code editor, an open-source tool suits quick tests, and a full platform suits teams needing mock servers, monitors and a collection runner.
Insomnia's homepage points to an open-source and free tier with native Git and filesystem storage, plus a Scratch Pad you can use without ever logging in. So the developers looking for alternatives aren't usually short of features. They're more often uneasy about where the product is heading, how their collections are stored, or whether a different style of tool would suit their day better.
Where it sits in a bigger vendor's stack
Insomnia's help pages sit inside Kong Docs, under Kong's products for building and running APIs, and its homepage pitches it as an AI-native API collaboration platform tied in with Kong Konnect.
None of that is a problem if you use Kong's other products, and for some teams it's a plus. But if what you want is an independent client that stays out of any wider platform, it's a reason to look at where each alternative keeps your requests and your data before you choose.
That's the single most useful filter for this list. Ask of every option: where do my collections live, who can see them, and can I move them again later without pain?
What you keep if you stay
Before you leave, it's fair to weigh what you'd be walking away from: the open-source tier, the option to keep projects in Git or on your own disk, and a scratch area that never asks you to sign in.
If your worry is only about the vendor's direction rather than anything the tool does today, a sensible middle path is to keep using it while you trial one alternative on the side. You lose nothing, and if the direction does change in a way you dislike, you'll already know where you're heading.
Five questions to answer before you shortlist
API clients look alike in screenshots, so it's easy to pick on looks. These questions do a better job of sorting them.
- Where should saved requests live: in a repository next to your code, only on your laptop, or somewhere your whole team can reach?
- Do you spend your day inside a code editor and resent switching windows to send a call?
- Is a terminal where you're happiest, or do you want a desktop window with buttons?
- How many people need to see and edit the same requests, and do they need mock servers or scheduled checks?
- Does being able to inspect the source code matter to you or to your organisation?
Two or three of those answers usually point to one group below. Start there and ignore the rest until you've tried it. Comparing seven tools at once mostly produces a long spreadsheet and no decision.
All seven in one view
| Client | Style | Where it lives or runs |
|---|---|---|
| Bruno | Git-native | Collections as code in your repo |
| Hoppscotch | Open source ecosystem | Not listed |
| HTTPie | API testing client | Desktop and terminal |
| Postman | Full platform | API client, runner, mock servers, monitors |
| RapidAPI for Mac | Full-featured HTTP client | Native macOS app |
| Thunder Client | Editor extension | VS Code and JetBrains |
| Yaak | Local-first | Your machine, versioned with Git |
Requests stored as files you own
These suit teams who want API requests to live in the same repository as the code they test.
Bruno
Calls itself the Git-native API client and keeps each collection as code, so request changes can be reviewed the same way you review any other pull request.
Yaak
A local-first client: requests stay on your own computer, with Git handling the history.
Inside your code editor
Thunder Client
A lightweight REST API client for VS Code and JetBrains, so you never switch windows to try a call.
Open source and lightweight
Hoppscotch
Presents itself as an open source ecosystem for API development. Worth trying for quick tests and for anyone who wants code they can inspect.
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Desktop and terminal clients
HTTPie
An API testing client that comes in both a desktop app and a command-line version, which suits people who flip between a window and the terminal.
RapidAPI for Mac
A full-featured HTTP client with a native macOS interface, found at paw.cloud. Suits Mac users who want an app that feels at home on their system.
Solo developers and teams need different things
A freelancer testing one API on a laptop and a team of twenty shipping a public API have almost nothing in common, even though they'd both call themselves users of an API client.
On your own, the questions are simple: is it quick to open, does it stay out of your way, and can you find last week's request again? Any of the lighter tools above can do that. In a team, the questions shift to sharing, review and consistency. Who changed that header? Which environment is production? Can a new starter get going on day one? That's where file-based collections in a shared repository, or a full platform with mock servers and monitors, start to earn their place.
A full platform for bigger teams
Postman
Its product list runs to an API client, a collection runner, mock servers and monitors. There's a fuller comparison of Insomnia and Postman head to head if you're choosing between them.
Moving your collections over
- Export your current collections and environments, and keep that export somewhere safe before you change anything.
- Pick the two options whose storage model fits you best, using the table above, and try both rather than one.
- Import a single real collection into each, then run the requests you use every day and check the responses match.
- Recreate your environment variables and any secrets by hand, and make sure secrets don't end up committed to a repository.
- If your team shares requests, have a colleague open the same collection and confirm they see what you see.
- Only retire the old client once the new one has handled a full sprint of real work.
The step people skip is the secrets one. Moving to a Git-based tool is a great idea right up until an API key lands in a public repository, so check that before anything else. A quick look at your ignore file and a search of the repo for anything resembling a token takes five minutes and can save a very bad week.
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Frequently asked questions
Can I use Thunder Client in an editor other than VS Code?
Its own description names JetBrains editors as well. For any other editor, check Thunder Client's site before you plan around it.
Can HTTPie run inside a CI pipeline?
It comes in a terminal version, so read HTTPie's docs on using it in scripts and automated checks.
Does Postman work offline?
Check Postman's own docs. Its product list covers the client, runner, mock servers and monitors, but not how each behaves without a connection.
Does RapidAPI for Mac run on Windows?
It's described as having a native macOS interface, so plan on a different client for a Windows machine.
Do Bruno and Yaak store requests the same way?
Both lean on Git, but Bruno stores collections as code while Yaak keeps requests local first. Check each one's docs for the file layout before choosing for a team.
