Vayu is a free, open-source desktop app for Windows, macOS, and Linux that combines a full REST and GraphQL request builder - with collections, environments, and scripting - and a high-throughput load tester powered by a C++20 engine, with all data staying on your machine.
Publisher’s description
What is Vayu?
Vayu is an open-source api & web development program for Windows from Atharva Kusumbia. It is written in TypeScript.
Installation and requirements
Official installers exist for 64-bit as EXE (NSIS). The installer supports unattended (silent) installation.
Updates and version history
The current version is 0.45.0, released on October 22, 2026. 41 versions are listed since July 29, 2026, each with links to its own installer files. The last update is less than a month old.
Popularity and file types
The source code on GitHub (athrvk/vayu) has 18 stars. Similar programs include Insomnia, Bruno and Yaak.
Project description on GitHub: “Open-source API client with a native C++ load-testing engine. Postman-style requests + k6-level load tests in one local app”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Updated in the last two months
Cons
- No native ARM64 build
In short: Vayu is an open-source api & web development tool for 64-bit PCs. Administrators can deploy it unattended.
Is Vayu safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
CB4051897D84A6F9ECA53F3EA9BAE9E162534656EB5DB941095DA61EC3E1632D· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 41 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 0.45.0Latest | October 22, 2026 | — | 64-bit EXE (NSIS) |
| 0.44.0 | October 17, 2026 | — | 64-bit EXE (NSIS) |
| 0.43.0 | October 14, 2026 | — | 64-bit EXE (NSIS) |
| 0.42.0 | October 14, 2026 | — | 64-bit EXE (NSIS) |
| 0.41.0 | October 9, 2026 | — | 64-bit EXE (NSIS) |
| 0.40.0 | October 5, 2026 | — | 64-bit EXE (NSIS) |
| 0.39.0 | October 1, 2026 | — | 64-bit EXE (NSIS) |
| 0.38.0 | October 1, 2026 | — | 64-bit EXE (NSIS) |
Install from the command line
Silent install ›winget install --id athrvk.Vayu -eVayu-x64.exe /SRelated guide: How to use winget: install and update apps
Information
- Publisher
- Atharva Kusumbia
- Category
- API & web development
- Licence
- AGPL-3.0
- Price
- Free
- Source code
- github.com/athrvk/vayu
- Written in
- TypeScript
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (NSIS)
- Version
- 0.45.0
- Released
- October 22, 2026
- Added to the catalogue
- July 29, 2026
- Versions listed
- 41
- GitHub stars
- 18
- GitHub forks
- 5
- Website
- github.com
- winget ID
- athrvk.Vayu
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is Vayu free?
Yes. Vayu is open-source software under the AGPL-3.0 licence.
Is Vayu safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Vayu with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Vayu be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does Vayu run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of Vayu?
The versions page lists all 41 versions with links to their official installer files, back to July 29, 2026.
What are alternatives to Vayu?
Insomnia, Bruno, Yaak, HTTPie and Hurl. The alternatives page compares them.
