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Folder Inheritance, and More Template Functions

2025.3.02025.3.1

It’s been just a week since 2025.2 release with encrypted text and sharable environments, so be sure to peep that if you missed it 👀

It’s only been a week since the last major release, but this one contains such a highly requested feature that I thought I’d ship it early: Request Inheritance.

Before we dig in, though, I’d like to give an update on Yaak’s sustainability.

💰 10% sustainability achieved!

I want to start by sharing my gratitude for those who have purchased a license for Yaak. Thank you so much! 🤗

I quit my job last May to take a second crack at building an API client. It was a huge risk, but it looks like it’s going to pay off. Yaak has been growing steadily over the past year and just hit $500 MRR, which is 10% of the way to a sustainable income.

That’s over 100 customers and almost 50k total downloads!

Stripe MRR

Chart from Stripe showing $500 MRR

We still need to 10x to reach this goal, so if you’re interested in helping out, the best things you can do are:

And with that, let’s dig into the changelog.

🫃🏼 Workspace and folder auth / headers

While going over feedback last week, I noticed a few people mention that not being able to set authentication for an entire folder was a dealbreaker—especially from those using Yaak as a Postman alternative. Reading this broke my heart, so I worked my butt off for a few days and implemented it! 🍑

Folder settings

Configure auth or headers via folder or workspace settings

Here’s a quick breakdown of how request inheritance works:

  • Configure on either workspace or folder
  • Set authentication or headers
  • View the inherited values within the request view
  • Override inherited values on individual requests

And if you need a bit more info, check out the docs on Request Inheritance

Closes Folder / Workspace Inheritance

📐 Functions for HMAC, cookies, UUIDs, and more

Template functions are an extremely powerful way to customize requests. You can even write your own Plugins with a few lines of TypeScript.

I’ve been wanting to fill out the list of built-in functions for a while, so I finally got around to it.

Secure input field

Access template functions from the ctrl-Space autocomplete dropdown

Here are function namespaces added in this release:

  • cookie.* for accessing the cookie jar (eg. for CSRF)
  • hmac.* for creating secure signatures
  • url.* for encoding or decoding URLs
  • uuid.* for generating UUIDs
  • hash.* for hashing strings
  • base64.* for encoding or decoding base64
  • regex.* for extracting arbitrary strings
  • xml.* for querying XPath
  • json.* for querying JsonPath and escaping

As always, let me know if there are any missing functions you’d like to see!

Fixes and Improvements

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