August 28, 2019

I created Postwoman 馃懡 - An online, open source API request builder

Postwoman 馃懡 - API request builder

Feel free to contribute on GitHub 馃挌

In case you missed! Story this far: I joined Zartek, which is a start-up based in Kochi, Kerala where I work as a full-stack developer.

Story behind Postwoman: The very first task I was assigned is an API integration of an old project. That's when I came across Postman API testing. Postman has separate builds targeted to each operating systems made with Electron. I use a low-end PC and can't possibly afford to run another Electron app. From that moment onwards, I wanted to make an API testing platform which is:

  • Open Sourced 馃挌
  • Runs online
  • Have multi-platform support
  • Have multi-device support
  • Accessible from anywhere

That's how Postwoman was born (this is not at all an alternative to Postman - yet, it does the job very beautifully and minimally. It needs more features and love which I hope we all can give by contributions on GitHub).

When I did a background check on API request builders, Postman offered various Plans & Pricing, there were lot of other API request builders based on CURL etc. But none of them seems simple, minimal and efficient.

That's why I created my own API request builder with pure JavaScript (I used Vue.js) + HTML + CSS 馃挅

Did I mention this service is all free of charge and 100% open source? Yes, It's free and always will be.

The Postwoman API request builder helps you create your requests faster, saving you precious time on your development.

Features 馃敟

  • Send requests to verify your API is ready for launch
  • GET, PUT, POST, DELETE, OPTIONS (more coming soon)
  • Authentication support
  • Parameters support
  • Request body support
  • View Response
  • Progressive Web App support
  • UPDATE: Added History support
  • UPDATE: Migrated to Vue Nuxt
  • UPDATE: Added web socket support
  • UPDATE: Added raw input field for PUT and POST methods
  • UPDATE: Added response status color
  • UPDATE: Added theme customization with settings storage
  • (more coming soon)

Features planned for near future for which I need your help:

  • Autocomplete
  • Code highlight in response body
  • More methods
  • ~History~ UPDATE: Added History support
  • HTTP support (currently I don't have money to buy a domain so I hosted on GitHub Pages which is served only on HTTPS - this makes impossible to make non-HTTPS requests from HTTPS hosting 馃樋)

馃巵 Bonus: Postwoman is in dark mode 馃寶

Demo 馃殌

Feel free to contribute on GitHub 馃挌

If you want a heads up on my next projects, or just want to chat about the web, make sure to follow me @liyasthomas 馃挋 ( If any of my projects helped you please consider making a small donation on PayPal ( to help me pay my server bills and rent. Alternatively you can Buy Me a Coffee (

UPDATE: Thanks for all of your support and love. My fellow kind hearted dev friends registered and hosted Postwoman directly from GitHub pages to these domains:

  1. 3

    Saw your launch on Product Hunt recently, good luck with everything!

  2. 2

    This is amazing! I love the design and the simpleness of everything.


  3. 2

    This is awesome! Congrats 馃憦