# EmbarkStudios/puffin

🐦 Friendly little instrumentation profiler for Rust 🦀

Repository: https://github.com/EmbarkStudios/puffin
Canonical: https://ross.abutalabs.com/products/puffin
Language: Rust
License: Apache-2.0
License Family: permissive
Topics: profiler, rust, flamegraph, hacktoberfest
Last push: 2026-08-21T13:45:28+00:00

## Health v2 (maintenance only)
Score: 67/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 8, longevity 100
- inputs: {"age_days": 2214, "days_push": 12, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1732, forks 111 (observed 2026-08-28T04:05:28.754077+00:00)

## What it is
Puffin is a lightweight instrumentation profiler for Rust, primarily aimed at game development, using scope macros that cost ~1ns when disabled. It supports in-game visualization via egui and remote profiling over TCP with puffin_http and puffin_viewer.

## Use cases
- profile frame times in a Rust game
- find slow functions with flamegraphs
- profile a running application remotely over TCP
- add low-overhead profiling scopes to hot code paths
- visualize profiler data in-game with egui

## When to choose
- you're building a game or real-time Rust application and need per-frame profiling
- you want near-zero overhead when profiling is disabled
- you want flamegraph visualization in-game or via a standalone viewer

## When to avoid
- you need sampling-based profiling without code instrumentation
- you're profiling non-Rust code or need system-wide profiling
- you need production monitoring/telemetry rather than development profiling

## Facets
- artifact type: library
- maturity: active
- function: monitoring, tracing, developer-tools
- domain: gaming-tools, performance, developer-tools
- platform: rust, cross-platform
- tags: profiler, instrumentation, flamegraph, game-development, egui

## Member repositories
- EmbarkStudios/puffin (main) score 67

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:28.754077+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:31:29.508451+00:00, confidence not recorded.
  - readme: https://github.com/EmbarkStudios/puffin (fetched 2026-08-28T04:05:28.754077+00:00, sha 1bcfd77a2554)
  - registry_crates: https://crates.io/api/v1/crates/puffin (fetched 2026-08-29T11:08:14.130988+00:00, sha 0557b5cd7254)
- Data as of 2026-08-30T08:39:29.467469+00:00.