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LVGL Editor Comparison

PicoPixel vs SquareLine Studio vs EEZ Studio: which LVGL design tool fits your workflow?

LVGL is the most popular open-source graphics library for embedded displays. Choosing the right visual editor for LVGL can significantly impact your development speed and team workflow. This page compares three LVGL editors: PicoPixel (browser-based, collaborative), SquareLine Studio (established desktop editor), and EEZ Studio (free, open-source desktop editor with visual flow programming), across features, pricing, and workflow. For a deeper look at PicoPixel specifically, see our full feature list, the ESP32 integration guide, community templates, or the animated pets library.

Side-by-Side Feature Comparison

Platform

PicoPixel

Browser (no install)

SquareLine

Desktop (Win/Mac/Linux)

EEZ Studio

Desktop (Win/Mac/Linux)

Pricing

PicoPixel

Free + paid tiers (no feature gates)

SquareLine

Paid (limited free tier)

EEZ Studio

Free (open source)

LVGL Version

PicoPixel

8.x (9.x planned)

SquareLine

9.x only

EEZ Studio

8.3 + 9.x

Workflow

PicoPixel

Visual drag-and-drop

SquareLine

Visual drag-and-drop

EEZ Studio

Drag-and-drop + Flow

Real-Time Collaboration

PicoPixel

Yes

SquareLine

No

EEZ Studio

No

Built-In Version Control

PicoPixel

Yes

SquareLine

No

EEZ Studio

No

Live Simulator

PicoPixel

Yes (WebAssembly)

SquareLine

Yes (desktop)

EEZ Studio

Yes (desktop)

Shareable Preview Links

PicoPixel

Yes

SquareLine

No

EEZ Studio

No

Code Export

PicoPixel

Clean C (LVGL only)

SquareLine

C / MicroPython

EEZ Studio

C/C++

Events Editor

PicoPixel

Visual drag-to-connect

SquareLine

UI-based

EEZ Studio

Visual flowchart (EEZ Flow)

Widget Coverage

PicoPixel

Growing (beta)

SquareLine

Extensive

EEZ Studio

Extensive

Offline Support

PicoPixel

No

SquareLine

Yes

EEZ Studio

Yes

Open Source

PicoPixel

No

SquareLine

No

EEZ Studio

Yes (GPL-3.0)

Commercial Use

PicoPixel

From $17/mo ($204/yr)

SquareLine

From $790/yr (3.8x more)

EEZ Studio

Free (MIT/BSD)

Animation Editor

PicoPixel

Yes (keyframe timeline)

SquareLine

Yes

EEZ Studio

Yes

Community Templates

PicoPixel

Yes (UI kits & examples)

SquareLine

No

EEZ Studio

No

Animated Sprites

PicoPixel

Yes (160+ community pets)

SquareLine

No

EEZ Studio

No

Font Management

PicoPixel

Auto conversion, CJK, RTL

SquareLine

Manual config

EEZ Studio

Basic support

Community & Ecosystem

Beyond the editor, PicoPixel offers a growing ecosystem of community-driven resources that no other LVGL editor provides.

PicoPixel vs SquareLine Studio

Even on the free tier, PicoPixel does not limit what you can build. SquareLine Studio does.

No screen limits

Unlimited screens on every plan. SquareLine Studio caps free at 10.

No widget limits

Place as many as you need. SquareLine Studio caps free at 150.

No color limits

Use your full palette. SquareLine Studio caps free at 5 global colors.

6x more components

6 reusable components on free. SquareLine Studio allows just 1.

Browser-Based vs Desktop App

PicoPixel runs entirely in the browser: open a URL and start designing. There is nothing to download, install, or update. It works on any OS with a modern browser (Chrome, Edge, Firefox, Safari). SquareLine Studio is a desktop application that requires downloading and installing a platform-specific binary, with manual updates.

For teams, this means PicoPixel is faster to evaluate and easier to onboard new members: no IT provisioning required.

Real-Time Collaboration & Version Control

PicoPixel supports real-time collaborative editing: multiple users can work on the same project simultaneously, see live cursors, leave annotations and comments, and review changes together. Built-in version control tracks every change with automatic rollback.

SquareLine Studio is a single-user desktop application. Its only collaboration feature is an option to store screens in separate files for external git workflows (added January 2026). There is no built-in version control, commenting, or shared workspace.

Pricing & Accessibility

PicoPixel offers a generous free tier with the same core features as paid plans. You pay for scaling and team capacity, never for the tools themselves. Every plan includes unlimited exports, unlimited screens, and unlimited widgets. Commercial use starts from $17/mo ($204/yr), a fraction of SquareLine Studio's $790/yr entry point.

SquareLine Studio offers a limited free tier (10 screens, 150 widgets, non-commercial use only). Paid tiers start at approximately $790/year for small business use, with revenue caps and income verification requirements. Commercial use of generated code requires a paid license.

Code Export Quality

PicoPixel exports clean LVGL C code (just the UI) without extra boilerplate or framework wrapper code (no SDL, no template artifacts). The output is designed to integrate directly into any existing firmware project.

SquareLine Studio exports C and MicroPython. Generated code can include SDL and template-related boilerplate depending on the project template selected.

Community Templates & Animated Sprites

PicoPixel offers a community templates gallery with ready-made UI kits, example projects, and full apps that users can open and customize directly in the editor. It also includes a library of 160+ animated sprite companions (Pets) with multi-state animations that react to device conditions — a unique feature for embedded UIs.

SquareLine Studio includes a set of templates, but they are tied to specific hardware boards and limited in number. There is no community template gallery, shared asset library, or animated sprite system.

LVGL Focus

Both tools are committed to LVGL. PicoPixel is built exclusively for LVGL and embedded devices with limited compute power: every feature is designed around LVGL's architecture. SquareLine Studio remains LVGL-focused, though its official partnership with the LVGL project ended in February 2024 due to differences in vision. Both continue independently.

PicoPixel vs EEZ Studio

Browser-Based vs Desktop App

PicoPixel runs in the browser with zero installation. Share a link and start collaborating. EEZ Studio is an Electron-based desktop application that requires download and installation, but it works fully offline, making it a better fit for air-gapped environments.

Visual Design Approach

PicoPixel offers a Figma-like visual design experience focused on drag-and-drop simplicity, with a clean modern UI and a visual flow-node connector-based events editor.

EEZ Studio combines visual drag-and-drop with EEZ Flow, a powerful visual flowchart-based programming system that lets non-programmers build application logic without writing C/C++. EEZ Studio also handles test & measurement instrumentation and desktop dashboard apps. This breadth provides flexibility but comes with a steeper learning curve.

Collaboration & Team Workflows

PicoPixel is built for teams: real-time collaboration, comments, version control, and shareable preview links. EEZ Studio is a single-user desktop application. Team coordination happens through external tools like Git.

Community & Ecosystem

PicoPixel includes a curated ecosystem beyond the editor: a community templates gallery with ready-made UI kits and examples, and a library of 160+ animated sprite companions with multi-state animations for embedded UIs. Community members can submit their own templates and pets.

EEZ Studio is open source with a GitHub community and a limited number of community projects, but does not have a curated template gallery or asset library built into the tool.

Widget Coverage & Maturity

EEZ Studio has extensive widget support built over years of development, including arcs, charts, gauges, calendars, QR codes, and many more. PicoPixel is in beta with a growing but currently more limited widget set. New widgets are being added actively.

SquareLine Studio vs EEZ Studio

Pricing Model

SquareLine Studio is a paid product with a limited free tier. Business and Lifetime licenses cost hundreds to thousands of dollars per year. EEZ Studio is completely free and open source (GPL-3.0), no paid tiers, no feature gating, no usage limits, no revenue caps. For price-sensitive developers, EEZ Studio eliminates cost entirely.

Open Source vs Proprietary

EEZ Studio is open source: users can inspect the code, contribute improvements, and modify the tool for their needs. Generated code uses MIT/BSD licenses. SquareLine Studio is proprietary and closed source. Users depend on the company for updates, bug fixes, and continued LVGL version support.

Widget & Feature Coverage

Both tools have extensive widget support. SquareLine Studio has a larger established user base and more platform-specific documentation for targets like ESP32, STM32, NXP, and Renesas. EEZ Studio offers unique features like EEZ Flow visual programming and test & measurement instrument control. Both support LVGL v9.x.

When to Choose Each Tool

Choose PicoPixel if…

  • You want a browser-based, zero-install experience
  • Your team needs real-time collaboration with comments and feedback
  • You want built-in version control without managing git manually
  • You want shareable simulator links for stakeholders
  • You want ready-made community templates, UI kits, and example projects
  • You want animated sprite companions for your embedded UI
  • You want affordable commercial licensing compared to alternatives
  • You prefer a Figma-like design workflow

Choose SquareLine Studio if…

  • You need to work fully offline
  • You need the most extensive widget coverage available today
  • You need a tool with a longer track record and larger community
  • Your organization requires desktop-only software for compliance
  • You need MicroPython export support
  • You value extensive platform-specific documentation

Choose EEZ Studio if…

  • You want a completely free, open-source tool with no restrictions
  • You need visual flow-based programming for application logic
  • You work with test & measurement instruments (SCPI)
  • You need desktop dashboard apps alongside embedded UIs
  • You need support for both LVGL v8.x and v9.x
  • You prefer open-source tools you can inspect and modify

Frequently Asked Questions

Is PicoPixel a more affordable alternative to SquareLine Studio?

Yes. PicoPixel offers a generous free Community tier that includes core editing, the live simulator, code export, and up to 10 projects. Paid plans range from $10/mo (Starter) to $20/mo (Pro) for individuals, compared to SquareLine Studio's paid tiers which start at approximately $790/year. All PicoPixel plans include the same core features — paid tiers add storage, project limits, team seats, and commercial-use thresholds, not feature gates. EEZ Studio is also free (open source, GPL-3.0).

Can I use PicoPixel-generated code in commercial products?

On the Pro plan and above, you are free to use PicoPixel's generated code in commercial products. The exported code uses standard LVGL API calls with no proprietary dependencies. The Community and Starter plans are for personal, educational, and hobby use only. SquareLine Studio also requires a paid license for commercial use. EEZ Studio's generated code uses MIT/BSD licenses and is commercially free.

Can I move projects between LVGL editors?

Each tool uses its own project format (.picopixel, .spj, .eez-project). None of the three tools currently support importing projects from the other editors. However, you can export, share, and import .picopixel project files, which contain your full LVGL design. Importing from external LVGL source files is on the roadmap.

Which LVGL editor has the best widget support?

EEZ Studio currently has the most extensive widget library, followed by SquareLine Studio. PicoPixel supports a wide range of widgets including Layout (Panel, Container), Media (Image, Animated Image, Sprite, Chart, Bar), Input (Label, Textarea, Roller, Dropdown), and Interact (Button, Arc, Slider, Switch, Checkbox, Spinbox). Sprite is unique to PicoPixel — it enables stateful animations for different device conditions. The widget set is growing and new widgets are being added actively.

Does PicoPixel work offline?

No. PicoPixel is a web-based application that requires an internet connection. It does include auto-save, so your work is protected even if your connection drops. For organizations in sensitive sectors such as defense or medical that need air-gapped deployments, PicoPixel offers a dedicated on-premise option where the entire application runs on your own hardware behind your own authentication (LDAP, SSO, or any OAuth provider). Both SquareLine Studio and EEZ Studio are desktop applications that work fully offline.

Which tool exports the cleanest LVGL code?

PicoPixel exports a zip file containing clean, production-ready LVGL C code (.c and .h files) with widget setup, styling, layout, event bindings, and asset references — all using standard LVGL API calls with no proprietary dependencies. EEZ Studio generates structured C/C++ with its own file organization. SquareLine Studio's exports can include SDL and template-related boilerplate depending on the project template.

Which LVGL versions does each editor support?

PicoPixel currently targets LVGL 8.x, with v9.x support planned. The generated code uses standard LVGL API calls and compiles cleanly against the latest 8.x release. EEZ Studio supports both LVGL 8.3 and 9.x. SquareLine Studio supports LVGL 9.x only; v8 support was dropped in January 2026.

Does PicoPixel have community templates?

Yes. PicoPixel has a community templates gallery with ready-made UI kits, example projects, and full apps. You can browse, open, and customize any template directly in the editor. Community members can also submit their own designs.

What are PicoPixel Pets?

Pets are animated sprite companions for embedded UIs built on top of LVGL's Animated Image widget. Each pet is a multi-state animated widget with modes like Idle, Running, Waving, and Jumping that can react to device conditions, for example, a charging animation that transitions to a fully-charged loop. PicoPixel has a growing library of 160+ community-submitted pets. Learn how to use them in your project.

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