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Dev tools · alternatives · 2026

24 alternatives to Highlight – Debug customer-facing issues with replay

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.…

Highlight is a debugging tool that uses session replay to help development teams reproduce and understand customer-facing errors. It captures user interactions and context around issues, eliminating the need for manual… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Highlight – Debug customer-facing issues with replay launched in 2022; newer entries below may have overtaken it.

  1. 1
    Highlight▲285

    Understand and debug customer issues with confidence

    2022 · launchdarkly.com · its alternatives →

  2. 2

    Stop guessing why bugs happen

    2023 · launchdarkly.com · its alternatives →

  3. 3

    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 →

  4. 4
    Highlight▲318

    See and act on your webapp's issues and interactions

    2021 · launchdarkly.com · its alternatives →

  5. 5

    Collaboration on Highlight makes debugging faster than ever

    2022 · its alternatives →

  6. 6

    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 →

  7. 7

    The best way to monitor the performance of your frontend

    2022 · launchdarkly.com · its alternatives →

  8. 8

    A weekly summary of sessions and errors on your web app

    2022 · launchdarkly.com · its alternatives →

  9. 9
    Replay▲279

    Your time travel debugger

    2021 · replay.io · its alternatives →

  10. 10

    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 →

  11. 11AW

    Hey HN, I wanted to show you a product a small team and I have been working on for 4 years. https://jam.dev It’s called Jam and it prevents product managers (like I used to be) from being able to create vague and un-reproducible bug tickets (like I used to create). It’s actually really hard as a non-engineer to file useful bug tickets for engineers. Like, sometimes I thought I included a screenshot, but the important information the engineer needed was what was actually right outside the boundary of the screenshot I took. Or I'd write that something "didn't work" but the engineer…

    2024 · its alternatives →

  12. 12

    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 →

  13. 13

    A better way to monitor your Node.js backend

    2022 · launchdarkly.com · its alternatives →

  14. 14

    Debug web apps faster with record & replay

    2023 · requestly.com · its alternatives →

  15. 15

    Highlight any text and fact check it

    2024 · factchecktool.com · its alternatives →

  16. 16

    Turn ANY video into a highlight reel — instantly!

    2024 · my.augie.studio · its alternatives →

  17. 17

    Automated Penetration Testing for AI-Built Apps

    2021 · replay.io · its alternatives →

  18. 18
    Relicx▲285

    Monitor, debug and test real-world CX flows in minutes

    2022 · app.relicx.ai · its alternatives →

  19. 19

    See how visitors view and use your site.

    2017 · its alternatives →

  20. 20

    A visual feedback tool for better client-dev communication

    2023 · visualdebug.com · its alternatives →

  21. 21
    Ybug▲63

    Visual bug reporting and feedback tool

    2021 · ybug.io · its alternatives →

  22. 22
    Replay QA▲438

    Replay QA tells you what is broken before your users do

    Jul 2026 · qa.replay.io · its alternatives →

  23. 23
    HyperDX▲161

    Debug faster with affordable session replay, logs & traces

    2023 · hyperdx.io · its alternatives →

  24. 24
    Zipy▲339

    Debug instantly with session playback and monitoring in one

    2022 · zipy.ai · 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 →