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Dev tools · alternatives · 2026

24 alternatives to Unlogged

Open Source tool for mocking, testing & optimising

Unlogged is an open-source tool for Java developers that records API traffic to automatically generate unit tests, mock databases and external APIs, and monitor method performance. It captures and replays method inputs… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Unlogged launched in 2024; newer entries below may have overtaken it.

  1. 1UO

    Hello HN! Parth, and Shardul here. We have been building unlogged.io for the last 21 months. We started as a time travel debugger and pivoted to record and replay with assertions, mocking, and code coverage. You can save the replays in the form of a JSON and commit them to your git. Both Parth and I come from an e-commerce/payments background where production bugs meant heavy financial losses. Big billion days/Black Friday sales meant months of code freezes with low productivity. Before committing the code, we wanted to replay production traffic and know the breaking changes right…

    2023 · its alternatives →

  2. 2

    React Native library to backtrace your testing steps

    2022 · its alternatives →

  3. 3

    Beautiful, cross-platform & open-source tools for debugging, testing and building with HTTP(S), on Windows, Linux & Mac.

    2019 · httptoolkit.tech · its alternatives →

  4. 4
    Minilog▲307

    Log monitoring and real-time event alerts

    2024 · minilog.dev · its alternatives →

  5. 5

    Debug web apps faster with record & replay

    2023 · requestly.com · its alternatives →

  6. 6

    Hi Everyone! Kubetail is a general-purpose logging dashboard for Kubernetes, optimized for tailing logs across multi-container workloads in real-time. With Kubetail, you can view logs from all the containers in a workload (e.g. Deployment or DaemonSet) merged into a single chronological timeline, delivered to your browser or terminal. I launched Kubetail on HN last year and at that time the top request was to add search. Now I'm happy to say we finally have search available in our latest official release (cli/v0.4.3, helm/v0.10.1). You can check it out in action here:…

    2025 · github.com · its alternatives →

  7. 7

    Hi HN, Mike and Warren here! We've been building HyperDX (hyperdx.io). HyperDX allows you to easily search and correlate logs, traces, metrics (alpha), and session replays all in one place. For example, if a user reports a bug “this button doesn't work," an engineer can play back what the user was doing in their browser and trace API calls back to the backend logs for that specific request, all from a single view. Github Repo: https://github.com/hyperdxio/hyperdx Coming from an observability nerd background, with Warren being SRE #1 at his last startup and me previously…

    2023 · github.com · its alternatives →

  8. 8
    toast.log▲543

    🤯 Get console errors right on your page.

    2020 · toastlog.com · its alternatives →

  9. 9
    superlog▲497

    Hey HN, we’re Nico and Arseniy, co-founders of Superlog (https://superlog.sh). We're building a self-installing, self healing observability tool meant not to be opened. It has a wizard that daily sets up proper logging and an agent that investigates errors and opens PRs. Super short demo: https://www.youtube.com/watch?v=xFhU9Mk247M. In our earlier startups, we tried Sentry, Datadog, Grafana, Dash0, and nothing was good enough. Proper telemetry and alerting still requires a ton of manual setup. We struggled with adding good logs, so debugging was tough, especially as…

    Jun 2026 · superlog.sh · its alternatives →

  10. 10

    A command line tool to generate massive random Java applications

    2016 · takipi.github.io · its alternatives →

  11. 11

    This project is inspired by some of the asserts in Unreal engine. Due to reliance on core_intrinsics it is necessary to develop using nightly Rust, but there are stubs in place so a production build will not require nightly. I recently released version 0.2 which includes no_std support and adds optional log message arguments to the ensure macro.

    2024 · github.com · its alternatives →

  12. 12DR

    I'd like to invite everyone to try out DontBeEvil.rip, an experimental search engine for developers. tl;dr $ alias rip="curl -G -H 'Accept: text/plain' --url https://dontbeevil.rip/search --data-urlencode " $ rip 'q=Heartbleed bug' DontBeEvil.rip is a year long experiment to see if a small team can build a developer-focused search engine that is self-sustaining on $10 monthly subscriptions. It works by only indexing high-quality resources that are relevant to developers. You won't get useless listicles because we'll never crawl them. Relevant urls are harvested from HN,…

    2022 · its alternatives →

  13. 13

    Over the past few months, we've been building Prism; a fast, developer-first observability UI that's deeply integrated with our open-source database, Parseable. Prism is designed for engineers who debug distributed systems, sometimes at odd hours, and need answers right now, without having to deal with five different tools. Backstory: We spoke to dozens of observability practitioners in large enterprises. Across the board, we heard two things: (1)The RoI on observability tools is hard to justify. (2)OSS leads to tool sprawl, metrics in Grafana, logs in ELK, traces… somewhere. We wanted a…

    2022 · parseable.com · its alternatives →

  14. 14

    LogRocket helps you understand problems affecting your users, so that you can get back to building great software.

    2016 · logrocket.com · its alternatives →

  15. 15

    The only analytics tool you'll ever need

    2023 · logharvestor.com · its alternatives →

  16. 16

    Instantly collect & analyze logs real-time on any platform

    2018 · mezmo.com · its alternatives →

  17. 17

    Black-box fuzzer that fuzzes APIs based on OpenAPI specification. Find bugs for free! - matusf/openapi-fuzzer

    2021 · github.com · its alternatives →

  18. 18AB

    Hello everyone, there are many log services available and this is my attempt at a better one. Most online logging tools feature convoluted UIs, arbitrary mandatory fields, questionable AI/insights, complex pricing, etc. I hope my application fixes most of these issues. It also has some nice features, such as automatic Geo IP checks and public dashboards. Although I've created lots of software, this is my first open source application (MIT license), the tutorial for selfhosting is hopefully sufficient! Most of my development career has been with C#, NodeJS and PHP. For this project I've…

    2025 · txtlog.net · its alternatives →

  19. 19

    Low-overhead logging façade for performance-sensitive applications - obsidiandynamics/zerolog

    2019 · github.com · its alternatives →

  20. 20

    LogDNA Agent streams from log files to your LogDNA account. Works with Linux, Windows, and macOS Servers - logdna/logdna-agent

    2017 · github.com · its alternatives →

  21. 21LD
  22. 22

    Hey guys, I'm building erlog to try and solve problems with logging. While trying to add logs to my application, I couldn't find any lightweight log platform which was easy to set up without adding tons of dependencies to my code, or configuring 10,000 files. ErLog is just a simple go web server which batch inserts json logs into an sqlite3 server. Through tuning sqlite3 and batching inserts, I find I can get around 8k log insertions/sec which is fast enough for small projects. This is just an MVP, and I plan to add more features once I talk to users. If anyone has any problems with…

    2023 · github.com · its alternatives →

  23. 23

    Javaflame will generate a flamegraph of your application function calls, including the argument values and the return of each function. Check https://beothorn.github.io/javaflame to see an example. There are already some tools that render flamegraphs for java, but they are focused on measuring performance or require some other process running along with the application. They also record function calls, but do not record the arguments or return values from those functions. I needed instead something to help understand and debug my applications that was better than adding…

    2023 · github.com · its alternatives →

  24. 24

    Find AWS Lambda failures fast, right on your Mac

    Jun 2026 · logstitch.app · 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 →