GNU Guile
Ranked 2 of 5 scheme implementations by recommenders
Free Scheme implementation people praise for expressiveness, performance, and use in Guix. Critics agree debugging and stack traces are weak.
Free Scheme implementation people praise for expressiveness, performance, and use in Guix. Critics agree debugging and stack traces are weak.
44 people gave an opinion
- recommend it
- 24
- criticize it
- 20
- approval share
- 55%
Recommended in 10 of 13 months
- November 2025: recommended
- December 2025: recommended
- January 2026: recommended
- February 2026: recommended
- March 2026: recommended
- April 2026: not recommended
- May 2026: not recommended
- June 2026: recommended
- July 2026: recommended
- August 2026: recommended
- September 2026: recommended
- October 2026: recommended
- November 2026: not recommended (month in progress)
Why it doesn’t carry the badge
- 24 people recommend itNeeds 10 or more, met.
- 1.2 recommenders for every criticNeeds 2 to 1 or better, not met.
- Recommended in 10 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Expressive, pleasant Scheme language
“a lot of people underestimate Guile's performance, power and expressiveness”
Comment from 2 Sep 2026 in “Quest for eternal dock on Wayland – lambdock (C and GTK4 and Lisp Guile Scheme)” “Guile Scheme is a nice small language, and Guix uses that”
Comment from 20 Jul 2026 in “Hyprland 0.55 announced the switch to Lua for its config files” “i find guile scheme so much more pleasant than nix”
Comment from 26 Jan 2026 in “Guix for Development” - Comment from 15 Aug 2026 in “Racket v9.3”
Good performance and JIT
“It's also very gratifying to see how Guile was able to provide the desired level of performance.”
Comment from 29 Aug 2026 in “Quest for eternal dock on Wayland – lambdock (C and GTK4 and Lisp Guile Scheme)” “a lot of people underestimate Guile's performance, power and expressiveness”
Comment from 2 Sep 2026 in “Quest for eternal dock on Wayland – lambdock (C and GTK4 and Lisp Guile Scheme)” “it got a JIT since version 3 and it can be pretty fast”
Comment from 11 Aug 2026 in “Chicken Scheme 6.0 Released” Multicore and parallelism support
“Scheme (GNU Guile) which I usually use (with nice parallelism if I want to, pipelines, and also pattern matching)”
Comment from 13 Dec 2025 in “I tried Gleam for Advent of Code” “Guile's story of using multiple cores is much more solid”
Comment from 23 Nov 2025 in “Racket v9.0” Lots of libraries, language of Guix
“Guile has lots of libraries though, and is the language of Guix.”
Comment from 7 Feb 2026 in “Hoot: Scheme on WebAssembly” “Guile Scheme is a nice small language, and Guix uses that”
Comment from 20 Jul 2026 in “Hyprland 0.55 announced the switch to Lua for its config files”
What people warn about
Each mark is one comment
Poor stack traces and debugging
“The issue with Guile's stack traces is that they get truncated beyond I think 80 characters”
Comment from 25 May 2026 in “I keep bouncing off the Scheme language” “Debugging has been difficult, but I figured it was me struggling with new tools and API.”
Comment from 7 Feb 2026 in “Hoot: Scheme on WebAssembly” “stack traces are esoteric and error messages entirely unhelpful”
Comment from 24 May 2026 in “I keep bouncing off the Scheme language” - Comment from 7 Feb 2026 in “Hoot: Scheme on WebAssembly”
- Comment from 8 Feb 2026 in “Hoot: Scheme on WebAssembly”
Manual and docs poorly organized
“The Guile manual is not well written. The organization seems almost random.”
Comment from 25 Dec 2025 in “How GNU Guile is 10x better (2021)” “Just like Guile docs, it also doesn't tell you of a good way to do things”
Comment from 7 Feb 2026 in “Hoot: Scheme on WebAssembly” Slower than Racket, integer overhead
“Guile e.g. greatly lags Racket performance or lacks nice libraries like Gauche”
Comment from 7 Feb 2026 in “Hoot: Scheme on WebAssembly” “Guile integers would come with a big efficiency hit”
Comment from 1 Mar 2026 in “Decision trees – the unreasonable power of nested decision rules” Library gaps and missing package manager
“I do agree the Guile library has some spots to improve but honestly, I am already enjoying it so much”
Comment from 26 Sep 2026 in “Parsing Expression Grammar vs. Regexes: Building Org Parser in Lisp, Export HTML” “there is no proper Guile (let alone general Scheme) package manager”
Comment from 23 Apr 2026 in “Olive CSS: Lisp powered vanilla CSS utility-Class A la Tailwind”
Other scheme implementations people recommend
The four most recommended other scheme implementations, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| Chicken Scheme | 25 | 2 | 93% | 10 | 3 yrs3 owners | Approved |
| GNU GuileThis page | 24 | 20 | 55% | 10 | — | — |
| Chez Scheme | 23 | 5 | 82% | 7 | — | Approved |
| S7 Scheme | 7 | 0 | 100% | 4 | — | — |
| Gambit Scheme | 5 | 1 | 83% | 4 | — | — |
What people said
40 of the 54 comments that mention it, newest first. Each links to the original comment.
“I do agree the Guile library has some spots to improve but honestly, I am already enjoying it so much”
“That is very handy, especially when writing macros.”
“I think that makes a lot of sense.”
“a lot of people underestimate Guile's performance, power and expressiveness”
“It's also very gratifying to see how Guile was able to provide the desired level of performance.”
“But though I liked them I never had enough work in them to get really good.”
“I kind of prefer it as a way to reduce syntax”
“I had a look at Guile as well and it is great”
“its documentation about how to use it as a scripting language within a C program is excellent”
“I think I'd lean towards Guile for a game because of Hoot, wasm compiler, and Chickadee, little game library”
“it got a JIT since version 3 and it can be pretty fast”
“Guile Scheme is a nice small language, and Guix uses that”
“If you want a Scheme with batteries included, I recommend GNU Guile.”
“Guile's own arc is instructive”
“Guile Scheme is great for native programs”
“my own hygienic looping system for guile scheme”
“I still ended up with a lot of boilerplate to compensate for the lack of a strong type system.”
“The issue with Guile's stack traces is that they get truncated beyond I think 80 characters”
“stack traces are esoteric and error messages entirely unhelpful”
“there is no proper Guile (let alone general Scheme) package manager”
“Guile integers would come with a big efficiency hit”
“Guile' backtraces are useless to the point it baffles me”
“Guile's IO story is better than Racket's”
“The recent Guile work on WASM is promising.”
“Guile e.g. greatly lags Racket performance or lacks nice libraries like Gauche”
“Just like Guile docs, it also doesn't tell you of a good way to do things”
“Guile has lots of libraries though, and is the language of Guix.”
“Debugging has been difficult, but I figured it was me struggling with new tools and API.”
“Guiles debugging has been a nightmare in the 3.x series.”
“Ah, and the subtle bugs of alternative function parameter evaluation order!”
“the Guix libs/DSLs are more awkward to use for declaring a system than Nix”
“I love Guile over Nix syntax”
“i find guile scheme so much more pleasant than nix”
“The biggest con is implementation size and complexity.”
“Its competition is Lua. Which is unfortunate for Guile, because it's even less attractive there.”
“The Guile manual is not well written. The organization seems almost random.”
“Pretty hard to consider them, in totality, anything close to 10x-ing from the herd.”
“glad to see him getting recognition for his work on Guile”
“Scheme (GNU Guile) which I usually use (with nice parallelism if I want to, pipelines, and also pattern matching)”
“Guile's story of using multiple cores is much more solid”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.