Open-source alternatives to Sketch (October 2026)

Open-source alternatives to Sketch

Sketch does 4 jobs: interface design, interactive prototypes, developer handoff, live collaboration. Most projects replace one or two of them, so pick the job you actually need.

Quick answer

Facts checked 15 Oct 2026

We track 3 open-source alternatives to Sketch, but none currently has confirmed commercial use, local running and no paid services together. Penpot covers all 4 Sketch jobs.

OpenPencil

open-pencil/open-pencil

★ 9.0k active today

Open-source design editor that reads and writes Figma .fig files, with components, auto layout, P2P collaboration, optional AI and a CLI.

Replaces Interface design + Developer handoff + Live collaboration (partly) Not: interactive prototypes

Runs locally: Confirmed: Yes
Commercial use: Confirmed: Yes · MIT
Paid services: Partial: Optional only
Hardware: Unknown: Unknown
Setup: Confirmed: Easy

Compare 7 of 8 facts sourced · checked 1d ago GitHub ↗ View details

Pencil Project

evolus/pencil

★ 9.9k active today

Free desktop GUI prototyping and wireframing tool with stencil collections for web, mobile and desktop mock-ups and diagram drawing.

Replaces Interface design + Interactive prototypes (partly) Not: developer handoff, live collaboration

Runs locally: Confirmed: Yes
Commercial use: Partial: Conditions · GPL-2.0
Paid services: Confirmed: None required
Hardware: Unknown: Unknown
Setup: Confirmed: Easy

Compare 7 of 8 facts sourced · checked 1d ago GitHub ↗ View details

Penpot

penpot/penpot

★ 61k active today

Open-source, self-hostable design and prototyping platform with real-time collaboration, components, design tokens and CSS/SVG inspect.

Replaces Interface design + Developer handoff + Live collaboration (partly)

Runs locally: Confirmed: Yes
Commercial use: Partial: Conditions · MPL-2.0
Paid services: Partial: Optional only
Hardware: Confirmed: CPU works
Setup: Confirmed: Medium

Compare 8 of 8 facts sourced · checked 1d ago GitHub ↗ View details

No project meets all of your requirements. The list below shows what you'd need to relax.

Common questions about Sketch alternatives

Is there a free, open-source alternative to Sketch?

Yes. Penpot, OpenPencil and Pencil Project are free to download and run on your own computer without paid API keys. Penpot covers every job we list for Sketch; the others cover only part of it, so check which job you need.

Can I do interface design locally without a Sketch subscription?

Yes, with Penpot (MPL-2.0), Pencil Project (GPL-2.0) and OpenPencil (MIT). Check the hardware notes and licence conditions on each page before you start.

Can I do interactive prototypes locally without a Sketch subscription?

Yes, with Penpot (MPL-2.0) and Pencil Project (GPL-2.0). Check the hardware notes and licence conditions on each page before you start.

Which Sketch alternatives can I use commercially?

Confirmed: OpenPencil. With conditions: Pencil Project and Penpot. This is not legal advice; read each licence.

Does any open-source project replace all of Sketch?

Penpot covers every job we list for Sketch.