# jagt/clumsy

clumsy makes your network condition on Windows significantly worse, but in a controlled and interactive manner.

Repository: https://github.com/jagt/clumsy
Canonical: https://ross.abutalabs.com/products/clumsy
Homepage: http://jagt.github.io/clumsy/
Language: C
License: NOASSERTION
License Family: other
Last push: 2025-11-25T02:38:44+00:00

## Health v2 (maintenance only)
Score: 47/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 53, release rhythm 8, longevity 100
- inputs: {"age_days": 4719, "days_push": 282, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6211, forks 619 (observed 2026-08-28T04:09:40.047612+00:00)

## What it is
clumsy is a Windows utility that degrades network conditions in a controlled, interactive way by capturing live packets with WinDivert and applying lag, drop, throttle, duplicate, reorder, or tamper effects. It requires no installation, proxy setup, or code changes and works system-wide on any TCP/IP application.

## Use cases
- simulate network latency and packet loss on windows
- test app behavior on poor or flaky connections
- debug bugs caused by broken network conditions
- emulate lag for localhost or offline testing
- throttle or duplicate packets to stress-test network code

## When to choose
- you need to simulate bad network conditions on Windows without changing your app or setting up a proxy
- you want interactive, on-the-fly control of packet lag, drop, throttle, duplicate, reorder, or tamper
- you need system-wide packet manipulation that works on any TCP/IP application, including localhost

## When to avoid
- you are on Linux or macOS - clumsy is Windows-only
- you need scripted or automated network fault injection rather than interactive GUI control
- you need bandwidth shaping or traffic prioritization rather than packet-level degradation

## Facets
- artifact type: application
- maturity: active
- function: networking, testing, gui
- domain: networking, developer-tools, testing
- platform: windows
- tags: network-simulation, packet-manipulation, windivert, fault-injection, poor-network-testing

## Member repositories
- jagt/clumsy (main) score 47

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:40.047612+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 2026-08-29T17:47:17.571734+00:00, confidence not recorded.
  - readme: https://github.com/jagt/clumsy (fetched 2026-08-28T04:09:40.047612+00:00, sha d908ea018083)
  - homepage: http://jagt.github.io/clumsy/ (fetched 2026-08-29T08:43:38.282285+00:00, sha ea916133bfe4)
- Data as of 2026-08-30T08:39:29.467469+00:00.