Free list · checked 12 Nov 2026

9 free GitHub repos that replace paid software

Open-source projects that do the job of Higgsfield, ElevenLabs, SEMrush, Notion, Wispr Flow, Asana, Calendly, Intercom and Loom. Each one has its GitHub link, the quickest way to start, and an honest note on what it still needs.

Read this first"Free" means the software is free and open source. Some still need your own computer power (AI tools), your own server (team tools), or a paid data/API key (SEO, cloud AI). Every note below says which.

01ComfyUI

replaces ~~Higgsfield / Midjourney~~ · open source

Make AI images and videos on your own computer with a visual node editor. It runs the latest open-source image and video models.

Easiest start: the Desktop app for Windows or macOS from comfy.org/download.
Open a ready-made template workflow, type a prompt, press Run.

Honest note: Needs a decent graphics card (it can run on as little as 4 GB VRAM, but more is faster). There is also a paid Comfy Cloud if your PC is too weak.

github.com/Comfy-Org/ComfyUI

02VoiceStudio

replaces ~~ElevenLabs~~ · open source

AI voice studio on your own device: voice cloning, voice design, video dubbing, dictation and narration in hundreds of languages.

Download the app from the repo's Download link.
Pick only the voice models you need inside the app, then generate.

Honest note: Only clone voices you have permission to use.

github.com/debpalash/VoiceStudio

03OpenSEO

replaces ~~SEMrush / Ahrefs~~ · open source

Keyword research, rank tracking, backlinks, site audits and competitor insights in one simple tool, and it works with AI agents through MCP.

Try the hosted version at openseo.so, or self-host it from the repo.
Add your own DataForSEO API key.

Honest note: The software is free, but the SEO data comes from DataForSEO, which you pay per use.

github.com/every-app/open-seo

04AppFlowy

replaces ~~Notion~~ · open source

Docs, notes, wikis, tasks and databases like Notion, but your data stays with you, and it can use local AI models.

Download the desktop app (Windows, macOS, Linux) or the mobile app from appflowy.com.
For offline AI, connect a local model through Ollama in the settings.

Honest note: Syncing across devices uses an AppFlowy account or your own self-hosted server.

github.com/AppFlowy-IO/AppFlowy

05OpenWhispr

replaces ~~Wispr Flow~~ · open source

Press a hotkey, speak, and your words are typed into almost any app. Works fully offline with local speech models, or online for speed.

Download the Windows .exe, macOS .dmg or Linux build from the repo's Download section.
Choose a local model (private, offline) or a cloud model (faster).

Honest note: Local models are private but need a reasonable CPU/GPU; cloud mode needs your own API key.

github.com/OpenWhispr/openwhispr

06OpenProject

replaces ~~Asana / Jira~~ · open source

Project management for teams: tasks, boards, Gantt charts, time tracking and wikis.

Self-host with Docker by following the install guide on openproject.org.
Create a project, add tasks, invite your team.

Honest note: Self-hosting needs a server. They also sell a hosted version if you don't want to manage one.

github.com/opf/openproject

07Cal.com (Cal.diy)

replaces ~~Calendly~~ · open source

Booking pages for meetings that sync with Google Calendar and Outlook. Cal.diy is the fully open-source, MIT community edition of Cal.com.

Self-host it with the steps in the repo's README.
Connect Google Calendar or Outlook, then share your booking link.

Honest note: The project says Cal.diy is for personal, non-production use and self-hosting needs some server knowledge. For a business, the hosted Cal.com has a free plan too.

github.com/calcom/cal.diy

08Chatwoot

replaces ~~Intercom / Zendesk~~ · open source

One shared inbox for website chat, WhatsApp, email, Instagram and more, with team assignment and canned replies.

Self-host with Docker using the guide at chatwoot.com/docs/self-hosted.
Add your website chat widget and connect your channels.

Honest note: Self-hosting needs a small server. Channels like WhatsApp still follow Meta's own rules and costs.

github.com/chatwoot/chatwoot

09Cap

replaces ~~Loom~~ · open source

Record your screen, camera and mic, then share an instant link or export a polished video. Desktop app for Windows, macOS and Linux.

Download the desktop app from cap.so.
Use Instant Mode for a quick share link, Studio Mode for editing.

Honest note: Recording locally is free; you can self-host or use your own S3 storage for sharing.

github.com/CapSoftware/Cap