HN Hall of Fame Weekly email

Fable: F# to JavaScript compiler

fable.io Software & code Software projects Software engineering Candidate
Screenshot of fable.io captured 2026-07-20
Page preview · captured 2026-07-20

Resurfaced independently across 6 calendar years, with breakout response in 2 of them.

submissions
9
submitters
9
observed span
2016–2026
peak thread · 74 comments
155 pts
latest 20+ return · 2021-10-17
129 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

Why not show a code sample on the homepage? None of Home, Docs, or Samples have a single code snippet on the entire page, you have to click through. Crystal and Rust are good examples of language homepages that give you an idea of what you're getting into up front. Or for a transpiled language, PureScript.

Fable is a brilliant project. It doesn't try to hide the fact that when you write a Fable program, you're fundamentally in the JS ecosystem. This can be a bit of a shift if you're used to doing stuff in .NET, but it means that everything will more or less work with your code. It also comes with a few tools/utilities to ease the F#-JS bridge you're on.

One feature which seems to be unique to Fable is that the repl doesn't rely on connecting to a compiler on the server. If I type some F# code, apparently it can be compiled/transpiled right in the browser!

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
2

100+ points or 50+ comments

Total points
300

reference only — not used in Hall rules or ranking

Total comments
150

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2016-11-08Fable.io: F# to JavaScript transpilerdeepakkarki20
2017-02-27Fable – F# – Babel transpilationjlturner20
2017-03-03Fable: An F# to JavaScript CompilerFullMtlAlcoholc33
2017-10-29Fable: F# to JavaScript compilerFirst breakout · Best threadgalfarragem15573
2019-06-20Fable: F# – Babelspiffytech20
2020-09-10Fable: F# to JavaScript Compilerdfgdghdf10
2021-10-17Fable is a compiler that brings F# into the JavaScript ecosystemLatest 20+ point returnphilonoist12974
2026-02-06Fabletosh10
2026-06-11Fable is a compiler that brings F# into the JavaScript ecosystemofrzeta50