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LiveUpdated 2026-09-19 16:08 UTC
Testing & observability
Testing & observability scores 42/100 on the Dev Radar money board (#9), with 350 posts and 8.5M views on X over the last 21 days.
11 new tools appeared in this market over the last 7 days, and 85 posts were published about it in the last 72 hours. Jev also rates the room for a newcomer here 1.18/4.
Top Testing & observability tools
Sentry
Debug any software issue, onboard your team, and integrate with your systems. You get 14 days free on our Business plan to start — no credit card required.
evlog
A modern TypeScript logger built for everything you ship — scripts, libraries, jobs, edge, requests. Simple logs, wide events, and structured errors in one API.
con-leche
con-leche, a CONsistent LEan CHEcker: an external Lean checker proven (in Lean) to be consistent, meaning it does not accept a proof of False. A project conceiv
neko-master
A modern and elegant dashboard for network traffic visualization and analysis. - foru17/neko-master
Testing JavaScript
Learn the smart, efficient way to test any JavaScript application.
chaosbringer
Chaos engineering for Playwright tests. Contribute to mizchi/chaosbringer development by creating an account on GitHub.
arXiv.org
Existing evaluation frameworks mostly assess only one part of AI agents, such as task completion (AgentBench) or security robustness (AgentDojo, ASB), rather…
evm-trace
Trace reconstruction Reconstruct compressed vmTrace responses without the optional op and idx extensions. Recover opcode names from bytecode, handle null…
msw-storybook-addon
Mock API requests in Storybook with Mock Service Worker. - mswjs/msw-storybook-addon
Knip
How Knip's Varlock plugin detects entry files, config files and dependencies.
appium
The problem I am using a tool to automate tests on iPhones. The tool uses Appium as the test framework. In iOS version 15, the screen shows a dark overlay…
TesterArmy
Give it a go and start for free
checkcle
CheckCle is a self-hosted, open-source monitoring platform for seamless, real-time full-stack systems, applications, and infrastructure. It provides real-time…
Redirecting…
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anti-slop
Opinionated Oxlint rules for rejecting low-evidence TypeScript and JavaScript patterns - dmmulroy/anti-slop
OrcDev
Submit your project for live code reviews by OrcDev. Get actionable feedback on code quality, architecture, and UX.
Mockfly
( ). But since you acknowledge "third-party" generators, would be nice to mention you can spawn an HTTP server out of handlers and hit that from iOS, Postman, a
netronome
Netronome is a modern network speed testing and monitoring tool built with Go and React. - autobrr/netronome
React Doctor
Find complex React functions, repeated JSX, and production risks with deterministic static analysis.
Voice Arena™
Voice Arena™ Leaderboards: human-rated rankings of leading text-to-speech (TTS) and speech-to-text (STT) models across English, Hindi, Bangla, Arabic,…
TesterArmy
TesterArmy runs real tests against your site or mobile app. Get screenshots, recordings, and bug reports - no test scripts to maintain.
Ultracite
Add ultracite upgrade, and make version drift between Ultracite and its linter visible instead of a crash. Bumping ultracite without bumping the linter fails…
Bounce Lab
We now have automated half-bounce analysis created by @infomiho! Paste an X post with a screen recording and it'll automatically analyze the frames, screenshot
FAQ
Is there money in testing & observability?
Jev rates buyer spend 3.57/4, search demand 3.31/4, sponsor budgets 2.62/4 and growth 2.7/4. Overall market score: 42/100 (#9 of 12).
What are the newest testing & observability tools?
lint, Sentry, evlog, con-leche, neko-master. Updated 2026-09-19 16:08 UTC.
How is this ranked?
35% money (Jev judgment), 25% traction on X, 20% momentum over 72 hours, 10% new tools, 10% room for newcomers. See methodology.
Every post is read and classified by Jev (TypeSafe): what it is, which market it belongs to, and whether the link is a real tool. 11.2k posts from 4.9k X accounts over the last 21 days, 1.2k tools, 12 markets. Collected every 5 minutes, fully re-ranked every hour — last update 2026-09-19 16:08 UTC. Full method.