Ferroterm
Rust / WebAssembly Terminal Emulator and Library
Details
- External ID
- 48793443
- Source
- HN
- Company
- —
- Product
- —
- Website domain
- —
- Launched
- July 5, 2026
- Cohort
- —
- Upvotes
- 6
- Upvotes percentile
- 0.2873357228195938
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Description
FerroTerm is a Terminal Emulator (xterm/vt100) / Library witten in Rust and compiled to WebAssembly.It is approx 4x faster than xterm.js which is used by VSCode etc. and prodvides wide spec coverage.https://datanoisetv.github.io/ferroterm/Would love some feedback and hear what people want to build with it.
Enrichment
- Theme
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- terminal emulator in rust and webassembly
- Manually corrected
- False
Could you build this?
No Implementing a high-performance terminal emulator from scratch in Rust targeting WebAssembly requires strict adherence to legacy VT/ANSI escape specifications and custom low-level text rendering.
What it would actually take: The architecture requires a custom state machine to parse the vast VT100/xterm escape sequence specification, an efficient circular buffer memory layout for grid and scrollback data, and a WebGL/WebGPU-based glyph rendering pipeline with custom font atlasing. Outperforming xterm.js by 4x requires deep Rust optimization, zero-copy WASM memory bindings, and specialized systems graphics programming.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one — 135 launches clear the similarity bar, closest 8 shown.
Attention rank: #105 of 136 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 244 days after the earliest competitor.
- VsTerm · ph · 2026-09-26 · 1 upvotes · similarity 0.59
- Codex CLI compiled to WASM running in the browser · hn · 2026-08-19 · 5 upvotes · similarity 0.45
- WebTerm · hn · 2026-01-18 · 8 upvotes · similarity 0.44
- Writing Rust modules for the xv6 kernel · hn · 2025-12-01 · 5 upvotes · similarity 0.44
- Microterm runs Linux VM in any browser tab via WASM, RISCV64 emulation · hn · 2026-02-22 · 6 upvotes · similarity 0.44
- pureterm · github · 2026-09-16 · 57 upvotes · similarity 0.43
- A pure-Ruby X11 terminal · hn · 2026-06-15 · 10 upvotes · similarity 0.43
- Reverse-engineering Shockwave to save early 2000s web games (Rust/WASM) · hn · 2026-03-08 · 16 upvotes · similarity 0.42
Other launches for this product
- No other launches for this product.
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