Dev tools · alternatives · 2026
24 alternatives to HTTP Error Lookup Codes
Understand HTTP errors instantly; causes, comparisons, fixes
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.
- 1AW
2019 · statuses.now.sh · its alternatives →
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Want to familiarize yourself with some common website development terms? Use our web development glossary to find what you’re looking for!
2012 · httpstatus.es · its alternatives →
- 3
Build free 404, 503 and maintenance pages in 60 seconds
2015 · its alternatives →
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Hypertext Transfer Protocol Response status codes, and dogs
2021 · httpstatusdogs.com · its alternatives →
- 5
To understand the meaning of an HTTP status code and list all codes belonging to a specific class from your terminal.
2022 · github.com · its alternatives →
- 6
Hi, I created httpdbg, a tool for Python developers to easily debug HTTP(S) client requests in Python programs. I developed it because I needed a tool that could help me trace the HTTP requests sent by my tests back to the corresponding methods in our API client. The goal of this tool is to simplify the debugging process, so I designed it to be as simple as possible. It requires no external dependencies, no setup, no superuser privileges, and no code modifications. I'm sharing it with you today because I use it regularly, and it seems like others have found it useful too—so it might be…
2024 · github.com · its alternatives →
- 7SE
I recently wanted to test how a part of a web app responded to a 502 HTTP status code from a remote site from which it was pulling data. When I came to test it, the remote site was working fine, but I still wanted the 502. So I created statuscoder, just append your desired status code to the URL and it'll respond with that code. http://statuscoder.com It's my first single-use project and I like its simplicity - it does one job and (hopefully) does it well. Is there anything else that you'd want to see it do?
2012 · statuscoder.com · its alternatives →
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FetchSandboxfree tier, from $5/mo▲348API integration testing that remembers what breaks
Jul 2026 · fetchsandbox.com · its alternatives →
- 11IR
Sharing an internal tool that accelerated my development work 10-fold, especially with API debugging. Thought fellow developers here might find it useful. As a developer, I often have trouble reproducing errors at the client end. https://intercept.rest lets me debug and monitor API requests and responses. It is similar to the Network tab in Chrome Developer Tools but works for any API: mobile apps, webhooks, frontend etc. After I shared it with a close circle of friends, they found it incredibly useful and even found new use cases, I never imagined. Been a long time lurker here and…
2018 · its alternatives →
- 12
Test URLs in bulk for their HTTP responses, by ex-Google
2022 · http.app · its alternatives →
- 13HS
2018 · status.icu · its alternatives →
- 14EH
Just launched Errorception http://errorception.com/ yesterday. Errorception is a error tracking service which catches and reports in end-users' browsers as they happen. I built Errorception since I couldn't didn't find any error reporting system that (a) didn't rewrite my JS, (b) didn't modify the browser runtime by overriding common functions, and (c) had a zero performance cost, especially with regards to blocking script tags. Would love your thoughts. Site: http://errorception.com/
2011 · errorception.com · its alternatives →
- 15
Instantly understand api errors (401, 404, 500...)
2025 · api-error-helper.vercel.app · its alternatives →
- 16
Beautiful, cross-platform & open-source tools for debugging, testing and building with HTTP(S), on Windows, Linux & Mac.
2019 · httptoolkit.tech · its alternatives →
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HTTP View▲126Supercharged HTTP(S) debugging, in one click
2019 · httptoolkit.com · its alternatives →
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http.garden▲74Gardening for every HyperText Transfer Protocol status code
2023 · http.garden · its alternatives →
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FlowLens▲134Hi HN, We often run into this with coding agents like Claude Code: debugging turns into copy-pasting logs, writing long explanations, and sharing screenshots. FlowLens is an MCP server plus a Chrome extension that captures browser context (video, console, network, user actions, storage) and makes it available to MCP-compatible agents like Claude Code. You can try it here: https://magentic.ai/flowlens Any feedback—good, bad, or brutal—is welcome.
Dec 2025 · magentic.ai · its alternatives →
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Flytrap 2.0▲120The fastest and most detailed tool for fixing bugs
2023 · useflytrap.com · its alternatives →
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Lint for HTTP▲138Validator for HTTP. Contribute to vfaronov/httpolice development by creating an account on GitHub.
2016 · github.com · its alternatives →
- 24
A 10-question quiz to learn HTTP status codes the fast way
Jun 2026 · jsondevtools.org · 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 →