Quality

Every number on this page is generated, not typed.

Test counts, bug totals, binary sizes, and vox-fuzz's own coverage numbers, produced by scripts that read the compiler repository and vox-fuzz at build time.

Tests you can count

Every test the compiler repository tracks under tests/, counted straight off its file tree.

Golden-file .vox tests: 903
Compile-fail cases: 578
Total files under tests/: 1,821
Unit tests, compiler src/: 303

Counted by grep for #[test] in the compiler's own src/, not a cargo test run. A single #[test] function that loops over many fixtures (the compile-fail suite runs as one) is counted once here, so this is a floor on the real number of cases exercised, not the number itself.

Browse tests/ on GitHub

Bugs, in the open

Every bug vox-fuzz or a human has found, tracked publicly in docs/BUGS_FOUND.md, parsed for its totals rather than summarised by hand.

Bugs found: 91
Fixed: 86
Open: 0
Other: 5

"Other" is a status that is neither "fixed" nor "open" as written: a documentation fix, a duplicate note, or, if this count is not zero, an entry this parser could not read a status from at all.

Versions covered: 0.3.6 to 0.4.10.

Read docs/BUGS_FOUND.md on GitHub

Examples verified

Checked against vox 0.4.10 on 2026-08-23: 33 of 33 examples passed.

"Verified" means compiled with the real compiler, at the stated version, on the stated date. It does not mean run.

See every example

Memory safety, and how to try to break it

Vox's central claim is that a compiled program is memory-safe without a garbage collector or a runtime.

The compiler's own words, from its README:

README.md, Memory Safety Model

What a security report needs to show, from SECURITY.md:

SECURITY.md, what counts as a vulnerability

vox-fuzz hunts for defects against LANGUAGE.md claims: it generates Vox programs, compiles and runs them, and checks the compiler's behavior against what the specification says. It tracks how much of the specification has been exercised and verified, not only how many crashes it has found. None of this proves Vox correct, only that its claims have been checked this thoroughly so far.

Seed ledger

Date	vox	vox-fuzz	Seeds	Budget	Programs	Compiled	Findings	Notes
2026-08-19	0.4.5	c99e734	1–1000	12	1,000	1,000	0	post-modernization baseline
2026-08-19	0.4.5	c99e734	7000–7999	16	1,000	1,000	0	independent range, master-run
2026-08-19	0.4.5	f20eb77	1–2000 ×4 budgets	12/40/100/300	8,000	n/a	n/a	guard sweep, generation only, no compile or run

Generator leaves: 10 (A file count of src/gen_*.vox, not a count of the constructs each one emits.)

"Each finding is a .vox file plus a repro.sh; you reproduce it without trusting the tool."

vox-fuzz on GitHub

Binaries, measured

Compiled fresh at build time with the real compiler. No comparison against other languages is offered here without a citation.

File	Source	Stripped bytes	As built
hello.vox	the compiler repo's examples/hello.vox, vendored at content/examples/hello.vox	4,552	6,688
cat.vox	the compiler repo's examples/cat.vox, vendored at content/examples/cat.vox	13,528	33,088
supervisor.vox	the compiler repo's examples/supervisor.vox, vendored at content/examples/supervisor.vox	13,064	30,584
initramfs.vox	the compiler repo's examples/initramfs.vox, vendored at content/examples/initramfs.vox	13,872	36,936
clock.vox	this site's own content/clock.vox (the home page's hero example), not a file in the compiler repo	4,696	11,128

Stripped with GNU strip --strip-all; as built, with symbols, in the second column.

Command: vox <file> -o <out>

Stability

Supported versions, from SECURITY.md:

SECURITY.md, supported versions

Voxlang has no written compatibility policy yet. This page will not invent one.

Reproduce all of this

Every number above, run by hand on one machine with the compiler repository and vox-fuzz checked out and a built vox binary.

git clone https://github.com/Vox-lang/vox && cd vox

# 1. Tests you can count
git ls-tree -r --name-only main -- tests | grep -c '\.vox$'
git ls-tree -r --name-only main -- tests/compile_fail | wc -l
git ls-tree -r --name-only main -- tests | wc -l
git grep -c '#\[test\]' main -- src

# 2. Bugs, in the open
git show main:docs/BUGS_FOUND.md

# 4. Memory safety
git show main:README.md
git show main:SECURITY.md

git clone https://github.com/Vox-lang/vox-fuzz && cd vox-fuzz

# 4. Fuzzing: the seed ledger and generator leaves (or, once vox-fuzz
# publishes it, docs/ledger/quality-stats.json directly)
git show main:SEEDS.md
git ls-tree --name-only main:src | grep -c '^gen_.*\.vox$'

# From this site's own repository, with VOX_REPO and VOX_FUZZ_REPO
# pointed at the checkouts above:
VOX_REPO=/path/to/vox node scripts/docs/parse-quality.mjs
VOX_FUZZ_REPO=/path/to/vox-fuzz node scripts/docs/parse-fuzz.mjs
./scripts/measure-sizes.sh
./scripts/verify-examples.sh