SuzyLi

Re:Show HN: Fbsviewer – FlatBuffers binary viewer. Pure Rust compiler ... on Friday March 06, 2026 @01:56PM (#47279425)

Thanks for trying it out! Glad the synced views helped.

A shareable permalink is a great idea. Since the tool currently runs entirely client-side with no backend, the likely approach would be encoding the schema and binary directly into the URL (probably compressed + base64). I’ll experiment with this since it would make sharing repro cases in issues or PRs much easier.

Show HN: Fbsviewer – FlatBuffers binary viewer. Pure Rust compiler in WASM

Posted by SuzyLi on Friday March 06, 2026 @10:40AM
from the show-hn dept.

https://fbsviewer.shuozeli.com

I built fbsviewer, an interactive tool to help understand how FlatBuffers binaries are encoded.FlatBuffers is designed for performance and zero-copy access, but that also makes the raw binary format hard to reason about. When debugging serialization issues or learning the format, I often found it difficult to connect the schema, decoded data, and the underlying bytes.This tool lets you paste a...

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