Dev tools · alternatives · 2026
24 alternatives to Error Monitoring & Session Replay
Stop guessing why bugs happen
Highlight is an error monitoring and session replay tool for web applications that helps developers identify and fix bugs by capturing detailed information about what went wrong. It combines error tracking with session… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Error Monitoring & Session Replay launched in 2023; newer entries below may have overtaken it.
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Hey HN! We’re open-sourcing highlight.io (https://github.com/highlight/highlight), a session replay and error monitoring tool. Highlight.io gives you a high-precision video-like replay of what users are doing when an error or exception occurs in your web app, along with a full-fledged error monitoring experience (similar to bugsnag, rollbar, etc..). The main value prop of highlight.io is that we help you understand the full context surrounding an error and allow you to drill down to the code path that a user invoked (i.e user clicked button X, sent network request Y, and…
2023 · github.com · its alternatives →
- 2
Highlight▲318See and act on your webapp's issues and interactions
2021 · launchdarkly.com · its alternatives →
- 3
Highlight▲285Understand and debug customer issues with confidence
2022 · launchdarkly.com · its alternatives →
- 4
The best way to monitor the performance of your frontend
2022 · launchdarkly.com · its alternatives →
- 5
Hey HN, I’m Jay, a co-founder at Highlight and a YC alum; excited to share our replay-based debugging tool! TLDR; if you're using a tool like Fullstory for debugging, or you have trouble understanding the actual impact of your errors (e.g. in sentry), you should give us a try! We built Highlight because we constantly found ourselves flooded with errors and support tickets with very little context on why these issues occurred. To make matters worse, there was never an easy (and less annoying way) of reproducing these errors, other than by asking users to send screenshots, videos, etc.…
2022 · highlight.io · its alternatives →
- 6
Collaboration on Highlight makes debugging faster than ever
2022 · its alternatives →
- 7
A weekly summary of sessions and errors on your web app
2022 · launchdarkly.com · its alternatives →
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- 9
Hey HN. We’re Jay and Vadim from Highlight.io (https://highlight.io). We’re building an open source [1] monitoring platform for web applications. Today we’re excited to be sharing a performance tool we’ve been working on, which helps you inspect the latency of code execution from the client to the server. As engineers at past startups, we often had to debug slow queries, poor load times, inconsistent errors, etc... While tools like Jaegar [2] helped us inspect server-side performance, we had no way to tie user events to the traces we were inspecting. In other words, although we had…
2024 · github.com · its alternatives →
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- 11
A better way to monitor your Node.js backend
2022 · launchdarkly.com · its alternatives →
- 12
Automated Penetration Testing for AI-Built Apps
2021 · replay.io · its alternatives →
- 13
Hey hn! I'm one of the co-founders of highlight.io, an open source monitoring tool. Today we're sharing a ClickHouse-based logging solution we've been working on. We wanted to showcase how we built it and share how you could try it out to give feedback. Since we started working on highlight.io, we've been hyper-focused on "cohesion", or ensuring that when you install your monitoring stack, all of the resources in that stack (user interactions, requests, traces, logs, etc.) are connected in a consumable way. We've written up more about our philosophy on this here [1]. We started building…
2023 · github.com · its alternatives →
- 14
Hi Hacker News! We’re Vadim and Chris from Highlight.io [1]. We do web app monitoring and are working on using LLMs/embeddings to add new functionality to our error monitoring product. Given that there’s a lot of founders/engineers using LLMs in their products, we figured we’d share how we built the new functionality, their impact on our workflows, and how you can try it out. Our goal was to build two features: (1) tagging errors (e.g. deeming an error as “authentication error” or a “database error”); and (2) grouping similar errors together (e.g. two errors that have a different…
2023 · github.com · its alternatives →
- 15
Replay QA▲438Replay QA tells you what is broken before your users do
Jul 2026 · qa.replay.io · its alternatives →
- 16
Debug web apps faster with record & replay
2023 · requestly.com · its alternatives →
- 17
BetterBugs.io▲669Capture bugs, record sessions, and fix with AI
2024 · betterbugs.io · its alternatives →
- 18
Session Replay shows what your customers are doing and why
2024 · amplitude.com · its alternatives →
- 19
Highlight any text and fact check it
2024 · factchecktool.com · its alternatives →
- 20
Relicx▲285Monitor, debug and test real-world CX flows in minutes
2022 · app.relicx.ai · its alternatives →
- 21
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SessionStack▲226See your product and website issues through your users’ eyes
2017 · its alternatives →
- 23
A supercharged way to monitor your entire Next.js app
2022 · launchdarkly.com · its alternatives →
- 24
Watch and learn to make better decisions
2024 · mixpanel.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →