Tiger is an open source API client where every request is a plain text .tiger file stored in Git, so teams review API changes in pull requests. It works fully offline with no account, supports REST, SOAP and GraphQL, OAuth 2.0, client certificates, proxies, request chaining, pre/post-request scripts with assertions, environments with secrets, a collection runner and a performance runner, and imports Postman, Insomnia, Bruno, OpenAPI and curl. It also ships a Model Context Protocol (MCP) server so AI assistants can run requests from a collection.
What's new in 0.8.1
What's new
Imported requests send with their own variables. Each collection now uses its own environment：opening a request switches to that collection's environment (the one you last picked there), so a second import no longer leaves the first collection's {{variables}} unresolved or pointed at the other collection's host. The collection runner, Copy as curl and export use the right collection's environment too.
Imports bring what their requests need. OpenAPI and Swagger servers become environments with {{baseUrl}}, server variables such as {env} and the auth placeholders. A WSDL without an address asks for the host. Postman globals are added to every environment, as in Postman. An environment imported after its collection gets the collection's variables. Bruno's {{process.env.NAME}} values are read from the collection's .env file. Variable names with spaces resolve.
Tiger never selects an environment named like production (prod, production, live) by itself; the import report says so.
Imported and opened collections start with their folders folded, except the one holding the request that opens, which scrolls into view. The folder page and Run folder include subfolders.
No more dark text on orange：buttons, selected tabs, chips and the active search match are white on a deep orange in light and dark (the Send button was near-black on orange), danger buttons are white on red, checkboxes draw white checkmarks and the dark switch knob is easier to see.
After an import, Tiger shows the imported request on its first section, not a page that was open or the Load test section, with its own history.
Imports are saved. An imported collection is now a collection folder in Documents/Tiger, so it is still there after a restart and Ctrl+S saves your edits (before, an import lived only until Tiger closed and Save did nothing on it). The import report says where it was saved, with a button to open that folder. An environment imported on its own is written into the collection's environments folder. The sample collection, or any collection that only lives in memory, can be saved from its menu (Save to disk) or with Ctrl+S. …
Tiger speaks six languages：English, Simplified Chinese (中文), Hindi (हिन्दी), Spanish (Español), French (Français) and Arabic (العربية). It starts in your system language (Mexican Spanish opens in Spanish, Canadian French in French, Simplified Chinese in Chinese) and falls back to English otherwise.
Settings > General > Language lists each language in its own name plus System default. Switching is live：the window, the native menu and file dialogs change language without a restart, and the choice is remembered.
Everything is translated：menus, buttons, tooltips, screen reader labels and announcements, toasts, errors, team sync wording (the git term stays in small print), the update banner, the import report and the welcome checklist. Numbers, dates and "3 minutes ago" follow the language, with the right plural forms (Arabic has six).
Arabic uses a full right-to-left layout：the sidebar moves to the right, arrows and chevrons are mirrored, and arrow keys follow the reading direction in the sidebar tree, tabs and resizers. URLs, code, JSON and shortcuts stay left to right.
Chinese, Hindi and Arabic text uses your system's fonts, with taller lines for Hindi and Arabic so nothing is clipped.
The command palette finds commands by their translated name and by their English name.
Yes. Tiger is free and open-source software released under the MIT license.
What is the latest version of Tiger?
The latest version is 0.8.1, released on Oct 3, 2026.
Is it safe to download Tiger?
The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 7f39fb455c24d7a03569459947359c8434c9f390386ee54ff28a443e62cfcdbb.
Which Windows versions does Tiger support?
Tiger runs on Windows and is available for 64-bit (x64) systems.
How do I install Tiger silently?
Run the offline installer with "Tiger-Setup-0.8.1-windows-x64.exe" /S, or install it with Windows Package Manager: winget install --id=TaoufikJabbari.Tiger -e --silent.
How do I uninstall Tiger?
Open Settings › Apps › Installed apps, find Tiger and select Uninstall. From the command line, run winget uninstall --id=TaoufikJabbari.Tiger -e.
Alternatives to Tiger
Other Web development programs for Windows from different developers.
