JMIT

What it does

JMIT detects zero-assertion tests, assert True patterns, and mock-only pytest functions that never catch bugs then auto-repairs them with mutation-verified replacements. 7-day free trial.

• 
  Rakuten SixthSense TAP2023 · ▲485

  Your co-pilot in quality excellence

• IB
  I built a tool to get instant test results2022 · github.com · ▲96

  I got sick of the old software development loop: Change code -> Run tests -> wait -> wait some more -> look at failures. I decided to build a tool that will enable you to: Change code -> look at failures. No wait time, no explicit test running. Under the hood: - Runs the whole test suite and collects code coverage per test. - For each auto file save, analyzes the changes on the tests. - Runs changed tests in the background. - Display results, the loop time from change to test results is approx 250ms. Instead of: code -> alt+tab -> arrow up -> rerun all the tests -> wait ... -> test results…

• 
  CodeBeaver2025 · ▲109

  Unit tests on autopilot

• NJ
  Nothing.js – A chainable mock object which always returns itself2018 · github.com · ▲89
• GJ
  Generate JSON mock data for testing/initial app development2023 · jsongenerator.io · ▲103
• SU
  Speeding up the code-test cycle for Java developers2023 · ▲69

  Hello HN, I am Parth. In my experience, the current form of testing automation takes too long. To solve this, I am creating a developer tool to speed up the code-test cycle for Java developers. It has two main parts: Direct Invoke - lets you call any Java function directly, without the need to execute the whole call hierarchy. (e.g. an HTTP endpoint) In my normal coding workflow, I use the “Evaluate Expression” feature inside IntelliJ IDE. I usually put a breakpoint somewhere in the code and after hitting the breakpoint by calling an HTTP api, let the execution remain paused while I explore…

• 
  Dograh▲592

  The open source VAPI alternative

  Dev tools · 26d ago · dograh.com

• 
  Meridian▲530

  Don't let your work go unnoticed. Get promoted!

  Dev tools · 21d ago · meridiona.com

• 
  x1▲516

  Lovable for iPhone apps go from idea to App Store

  Dev tools · 12d ago · x1.new

• 
  Computable GPU Index (CGI)▲424

  The first open-source price index for GPU compute

  Dev tools · 10d ago · getcomputable.com

• 
  Open-Source eInk Bike Computer▲407

  OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.

  Dev tools · 2d ago · opentrailpaper.com

• 
  The GTM Co-Founder▲402

  Open-source GTM skills for technical founders

  Dev tools · 30d ago · gtmcofounder.com

• 
  Fundraisly▲1,544

  AI fundraising agent that finds investors and books meetings

  AI · Jun 2026 · fundraisly.com

• H6
  Homebrew 6.0.0▲1,481

  Today, I’m proud to announce Homebrew 6.0.0. The most significant changes since 5.1.0 are a new tap trust security mechanism, the new faster, smaller, default internal Homebrew JSON API, sandboxing on Linux, better defaults informed by our user survey, many brew bundle improvements, improved performance and initial support for macOS 27 (Golden Gate). Happy to discuss any questions here!

  Dev tools · Jun 2026 · brew.sh

• PU
  Performative-UI – A react component library of design tropes▲1,181

  hope you enjoy

  Life & fun · Jun 2026 · vorpus.github.io

• 
  Upstream▲977

  The inbox designed for humans and agents

  AI · Jun 2026 · upstream.do

• 
  Goldfish▲962

  Press Option. It knows your work and replies like you

  AI · Jun 2026 · goldfish.sh

• IM
  I made Google Trends for Hacker News by indexing 18 years of comments▲822

  Life & fun · Jun 2026 · hackernewstrends.com