# prikhi/pencil

DEPRECATED: Multiplatform GUI Prototyping/Wireframing

Repository: https://github.com/prikhi/pencil
Canonical: https://ross.abutalabs.com/products/prikhi-pencil
Homepage: https://github.com/evolus/pencil
Language: JavaScript
License: GPL-2.0
License Family: copyleft
Topics: firefox-extension, pencil, wireframing, prototyping, xulrunner
Archived: true
Last push: 2018-09-19T00:12:34+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4192, "days_push": 2906, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1911, forks 185 (observed 2026-08-28T04:05:53.192321+00:00)

## What it is
Pencil is a free, open-source GUI prototyping and wireframing tool that runs as a Firefox extension or standalone app on Linux, macOS, and Windows. This fork is deprecated in favor of Pencil v3 by Evolus.

## Use cases
- create wireframes for a website
- prototype a mobile app UI
- draw GUI mockups with stencils
- design UI mockups for free
- sketch interface layouts before coding

## When to choose
- you need a free offline wireframing tool
- you want stencil collections like Bootstrap or Material Design

## When to avoid
- you need an actively maintained tool
- you rely on newer Firefox versions
- you need Pencil v3 file format compatibility

## Facets
- artifact type: application
- maturity: abandoned
- function: gui, ui-components, graphics
- domain: web-design, developer-tools
- platform: windows, browser
- tags: wireframing, prototyping, firefox-extension, deprecated, linux, macos

## Member repositories
- prikhi/pencil (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:53.192321+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 2026-08-30T03:11:02.595667+00:00, confidence not recorded.
  - readme: https://github.com/prikhi/pencil (fetched 2026-08-28T04:05:53.192321+00:00, sha 35b72b481d83)
  - homepage: https://github.com/evolus/pencil (fetched 2026-08-29T10:50:19.731959+00:00, sha 49ef6c9f2a63)
- Data as of 2026-08-30T08:39:29.467469+00:00.