Zs3
S3 server in ~1K lines of Zig, 250KB binary, zero dependencies
Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.
Want to reach these readers? Sponsor an issue.
Most S3 usage is PUT, GET, DELETE, LIST with basic auth. This does exactly that.SigV4 auth, multipart uploads, range requests. Storage is just files on disk.No versioning, no ACLs, no encryption. Use MinIO or AWS if you need those.
HN · launched Dec 29, 2025 · 42 upvotes (top 21%) · 0 views
Niche: cloud storage and backup management tools · 118 launches, 10 in the last 7 days ▼ -23% · Explore this niche →
Category and tags
- Horizontal
- Data infrastructure
- Developer
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 118 launches in cloud storage and backup management tools →
Could you build this?
No Implementing a zero-dependency S3-compatible HTTP server with AWS SigV4 authentication, XML payload parsing, and multipart chunking in Zig requires deep systems and low-level cryptographic protocol implementation.
What it would actually take: The stack involves Zig with manual memory management and low-level POSIX sockets/HTTP server handling. The core challenge is implementing cryptographic primitives (HMAC-SHA256, hex encoding) to correctly evaluate complex AWS Signature Version 4 authentication, alongside custom XML parsers for bucket responses and handling multipart streaming chunk uploads to disk without external libraries. It requires seasoned systems programmers experienced with manual memory allocation and strict wire protocols.
Discussion
1 comment analyzed.
Competitors mentioned: Minio
Competitors
Other products that read as similar to this one : 170 launches clear the similarity bar, closest 8 shown.
Attention rank: #38 of 171 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 47 days after the earliest competitor.
- ZeroFS · hn · 2026-06-11 · 11 upvotes · similarity 0.58
- ZeroFS · hn · 2026-07-02 · 128 upvotes · similarity 0.47
- drive-bucket · ph · 2026-11-10 · 1 upvotes · similarity 0.45
- Fractalbits · hn · 2025-11-25 · 6 upvotes · similarity 0.43
- Hippius Cloud · ph · 2026-11-06 · 1 upvotes · similarity 0.43
- Pail · github · 2026-10-19 · 27 upvotes · similarity 0.43
- Dropvi · ph · 2026-10-13 · 2 upvotes · similarity 0.43
- Record Store · ph · 2026-09-29 · 2 upvotes · similarity 0.43
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.