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Developer tools / Compiler Explorer

Compiler Explorer

Compiler Explorer is an interactive online compiler which shows the assembly output of compiled C++, Rust, Go (and many more) code.

UnclearSignup unclearFile handling unclearWebsite health 3.5 / 5Community 4 / 5

Where it stands

3.5 / 5

Signals score

Not a hands-on test

Based on 2 of 3 signals

  • Website health3.5 / 5 · weight 50%

    Measured from the tool's public website

  • Community4 / 5 · weight 20%

    What people said in public discussions

Built only from what we can measure or quote without using the tool. How ranking works

Rank by signals

We have not run our own hands-on test on Compiler Explorer yet. Facts checked 2026-11-08. How tests work

Disclosure: agathox makes some of the tools listed here. They are labelled and scored by the same method as every other tool.

Should you use Compiler Explorer?

A quick read built only from what the tool's own pages state and from our tests, not from opinion. Facts checked 2026-11-08.

A good fit if…

Nothing is clearly stated yet.

Check first

  • Its pages do not state: pricing, signup, watermark. Check on the tool's site before you rely on it.

Does: Online code editor

Measured signals

3.5 / 5 · measured 2026-11-08

Read automatically from Compiler Explorer's public website: how reliable, secure, private and open the site is. This is not a test of how well the tool does its job. How this is measured

  • Reliability5 / 5The page answered and finished downloading in 79 ms.
  • Security2 / 50 of 5 protective headers set.
  • Privacy5 / 5No third-party tracking services found on the page.
  • Transparency1 / 5No privacy policy linked; no pricing page linked.

Community feedback

4 / 5 · 14 commenters

100% of the 14 people whose comments we could classify were positive. Read automatically from public Hacker News threads about Compiler Explorer; the classifier is simple and can misread sarcasm, so check the threads. How this works

  • Positive

    “I recently learned that it's not too difficult to run Compiler Explorer locally on your machine. Clone it from github and run the appropriate makefile and npm commands. Recently I've been using it Compiler Explorer a lot…”

    Read in the thread
  • Positive

    “Godbolt links are always great for resolving "well actually" arguments about how smart compilers are (which, as you can guess, are quite common on Hacker News). No more "the compiler will do this"–if you're going to…”

    Read in the thread

Threads: Compiler Explorer (2022, 107 comments) · Compiler Explorer (2020, 48 comments) · Compiler Explorer (2018, 44 comments) · Compiler Explorer (2016, 38 comments)

Free tier
Not stated.
Paid plan
Not stated.
Signup
Not stated.
Watermark
Not stated.
Where files go
Claude Explain will send your source code and compilation output to Anthropic (a third party company). The page says: “Claude Explain will send your source code and compilation output to Anthropic (a third party company), and will use a large language model (LLM, a form of AI) to attempt to explain your code and the assembly output it produces.”

From the tool's own pages, checked 2026-11-08. Sources: Home. Prices and limits change; check the tool before you rely on them.

Read automatically by a program, not by a person. Each fact quotes the sentence it came from, and a fact is shown only if that sentence is on the page. Where a page did not say, it reads “Not stated.”

Get an email if Compiler Explorer changes

We check its official pages every week. If they change, we tell you, so you can see if the price or limits moved. No other email, and one click stops it.

Are you the maker of Compiler Explorer? Link to this page

Copy this into your site. The link goes to this page, and it does not change any score.

<a href="https://agathox.com/tools/compiler-explorer">Compiler Explorer on agathox: compared and tested</a>

Tasks and scores

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