STViewer
STViewer is a viewer and search tool for email archives such as OST, PST, and mbox written in Rust. Runs on Windows, macOS and Linux
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GITHUB · launched Nov 3, 2026 · 14 upvotes (top 95%) · 0 views
Niche: developer data and local file viewers · 49 launches, 9 in the last 7 days · Explore this niche →
Category and tags
- Horizontal
- Search & retrieval
- Prosumer
- Not AI
- Hobby / open-source project
- bec
- business-email-compromise
- dfir
- digital-forensics
- incident-response
- outlook
Visit website ↗ Source listing ↗
More like this: all 49 launches in developer data and local file viewers →
Could you build this?
Partial The viewer UI and search are vibe-codeable in Rust, but parsing proprietary PST/OST formats reliably is a hard piece that needs format-level expertise. mbox is easy, the Outlook formats are not.
What it would actually take: Parsing OST/PST requires implementing or wrapping the MS-PST/MAPI format specification, including B-tree structures, encrypted blocks, and property decoding. The Rust core needs a dedicated format parser, possibly building on libpff, and testing against many real archives.
Competitors
Other products that read as similar to this one : 99 launches clear the similarity bar, closest 8 shown.
Attention rank: #98 of 100 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 351 days after the earliest competitor.
- MacSonik MSG Viewer Pro · ph · 2026-10-29 · 1 upvotes · similarity 0.46
- Stremio_CLI · github · 2026-09-22 · 10 upvotes · similarity 0.43
- Svglib a SVG parser and renderer for Windows · hn · 2026-03-10 · 15 upvotes · similarity 0.42
- RustDesk-ru.github.io · github · 2026-10-06 · 47 upvotes · similarity 0.41
- Image Viewer · ph · 2026-11-06 · 2 upvotes · similarity 0.41
- MarkdownViewer - Free Markdown Viewer · ph · 2026-09-21 · 1 upvotes · similarity 0.40
- swift-explorer · github · 2026-10-14 · 17 upvotes · similarity 0.39
- rust-explorer · github · 2026-10-17 · 27 upvotes · similarity 0.38
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.