utop

Universal toplevel for OCaml

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5Distinct people

6Mentions

0Explicit recommenders

932GitHub stars

REPOSITORY AT A GLANCE

What to know before exploring

What it is

Universal toplevel for OCaml

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

ocaml/merlin · linked in 2 of the same discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 12:45:45 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year6 dated mentions

Observed mentions: 2014-07-08 03:41:57 UTC to 2018-08-23 15:06:25 UTC.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges

UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
Period	Start (UTC)	End (exclusive, UTC)	Mentions	Comments
2014	2014-01-01 00:00:00 UTC	2015-01-01 00:00:00 UTC	1	1
2015	2015-01-01 00:00:00 UTC	2016-01-01 00:00:00 UTC	1	1
2016	2016-01-01 00:00:00 UTC	2017-01-01 00:00:00 UTC	1	1
2017	2017-01-01 00:00:00 UTC	2018-01-01 00:00:00 UTC	1	1
2018	2018-01-01 00:00:00 UTC	2019-01-01 00:00:00 UTC	2	2

What Hacker News says

1 sources

jordwalke·Jul 8, 2014

I've seen a ton of great improvements in tooling/ecosystem. - OPAM was already mentioned. - The OCaml to JS compiler has matured and gained a lot of use. Interestingly, I suspect that it can also be used to achieve different types of parallelism than the types that the stock OCaml compilers provide. https://github.com/ocsigen/js_of_ocaml - Merlin is also a fantastic autocompletion plugin for Vim/Emacs. https://github.com/the-lambda-church/merlin VimBox (shameless plug) uses Merlin and is configured to provide "intellisense" style completion (as you type) like Visual Studio. https://github.com/jordwalke/VimBox - utop is perhaps the best top level REPL that I've ever seen. https://github.com/diml/utop (edit: Regarding utop: Normally I dread using a REPL for a statically typed language, but utop actually makes the top level fun and interacti

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ve. I actually look forward to using it!)

In OCaml for the Masses (2011)