Solo costs $15/mo.
These cost $0.
3 free alternatives to Solo, checked for license, recent activity and real adoption. Each one tells you the catch, so you can switch with your eyes open.
The top-rated free, open-source replacement for Solo is Builder (MIT Open Source). Across this category, 2 self-hostable tools are available (including Builder and Silex). Switching a 5-person team saves up to $900/year compared to Solo's $15/mo subscription.
The catch: Requires self-hosting setup, updates, and server maintenance compared to managed Contentful.
Solo vs Free Alternatives
Quick side-by-side comparison · $0/mo vs $15/mo
| Alternative | Type | License | Where It Runs | Stars | Head-to-Head |
|---|---|---|---|---|---|
| Builder | open source | MIT | Self-host | ★ 8.9k | Solo vs Builder → |
| Frappe Builder | open source | Open Source | Local | ★ 2.5k | Solo vs Frappe Builder → |
| Silex | open source | AGPL-3.0+ | Self-host | ★ 3k | Solo vs Silex → |
The picks
3 open source · ranked by fit
- 01
Builder
open sourceMITSelf-host8.9knov 2026Drag-and-drop interface for creating and optimizing digital experiences, with headless CMS and powerful integrations.
The catch vs SoloRequires self-hosting setup, updates, and server maintenance compared to managed Contentful.
Install, platforms & data +
- platforms
- webself-hosteddocker to self-host
- install
- Clone https://github.com/BuilderIO/builder or deploy with Docker Compose
- setup
- Deploy via Docker or binary release from GitHub and configure environment variables.
- your data
- All application data and configuration live on your own server or local database.
- checked
- 2026-11-07
- 02
Frappe Builder
open sourceOpen SourceLocal2.5knov 2026Frappe Builder is an open-source, low-code website builder that enables users to create beautiful, responsive websites with an intuitive visual interface.
The catch vs SoloCommunity-driven open source project without dedicated enterprise SLAs.
Install, platforms & data +
- platforms
- desktopcross-platformone-click install
- install
- Clone https://github.com/frappe/builder or deploy with Docker Compose
- setup
- Download the native package or installer for your operating system.
- your data
- All application data lives locally on your own machine.
- checked
- 2026-11-07
- 03
Silex
open sourceAGPL-3.0+Self-host3knov 2026An online tool for visually creating static sites with dynamic data. With the free/libre spirit of internet, together.
The catch vs SoloSilex supplies fewer polished portfolio templates and none of Carbonmade's discovery or portfolio-specific guidance.
Install, platforms & data +
- platforms
- webself-hostedthey host it
- install
- Use the hosted editor with a GitLab login, install the desktop alpha, or run the official Docker setup
- setup
- The stable hosted route starts with a GitLab account; the desktop build is still labelled alpha
- engines
- Optional desktop MCP workflow can connect to Ollama, OpenCode, Goose or Claude Code
- your data
- Project JSON and assets in GitLab, FTP or local storage; publishing produces ordinary static HTML, CSS and JavaScript
- checked
- 2026-11-07
Solo Head-to-Head Comparisons (2027)
Side-by-side trade-off breakdowns · 3 free alternatives
Frequently Asked Questions
Direct answers · Solo open-source replacements
What is the best free alternative to Solo?+
The top free alternative to Solo is Builder (open source, MIT). Drag-and-drop interface for creating and optimizing digital experiences, with headless CMS and powerful integrations. Other popular Solo replacements include Frappe Builder, Silex.
Can I self-host a free replacement for Solo?+
Yes. Of the 3 free alternatives to Solo, 2 can be self-hosted on your own server or local machine: Builder (MIT), Silex (AGPL-3.0+).
How much does switching from Solo to a free alternative save?+
Solo starts at $15/month per seat ($180/year). Switching a 5-person team to a free alternative like Builder saves $900 per year in software subscription fees.
Should I vibe-code or build my own Solo clone from scratch?+
Our build verdict for Solo is NO (use a free alternative, save the tokens). Instead of paying recurring SaaS fees for Solo or rebuilding it from scratch, deploy one of the 3 battle-tested open-source alternatives like Builder.
What is the catch when switching from Solo to Builder?+
Requires self-hosting setup, updates, and server maintenance compared to managed Contentful.
