Awesome Open-source Alternatives

Curating the best open-source alternatives for famous apps.

Inspired by opensource.builders

Contents

• AI Assistants and Coding
  • Character.ai
  • ChatGPT / Claude
  • Gamma
  • GitHub Copilot / Cursor
  • Lovable / Bolt / v0
  • NotebookLM
  • Perplexity
• Audio and Voice
  • ElevenLabs
  • Lalal.ai
  • Otter.ai
  • Speechify
  • Suno
  • Wispr Flow
• Design and Photo
  • Adobe Illustrator
  • Adobe InDesign
  • Adobe Lightroom
  • Adobe Photoshop
  • Canva
  • Figma
  • Meshy
  • Midjourney / DALL·E
  • Remove.bg
  • Topaz Photo AI
• Video
  • Adobe After Effects
  • Adobe Premiere Pro
  • Descript
  • HeyGen / D-ID
  • Opus Clip
  • Runway / Kling
• Documents and Writing
  • Adobe Acrobat
  • DeepL
  • Grammarly
  • Marked
  • Mathpix
• Learning
  • Codecademy / LeetCode
  • Quizlet
• Media and Entertainment
  • Audible
  • Kindle Unlimited
  • Netflix
  • Spotify
  • Twitch
  • YouTube
• Cloud Storage and Office
  • Google Calendar
  • Google Docs
  • Google Drive
  • Google Maps Timeline
  • Google Photos
  • WeTransfer
• Notes and Productivity
  • Asana
  • Calendly
  • Evernote
  • Feedly
  • Miro
  • Notion
  • Pocket / Instapaper
  • Todoist
  • Trello
  • Workona / Toby
  • Zapier
• Communication
  • Disqus
  • Slack
  • Zoom
• Security and Networking
  • 1Password
  • Auth0
  • Cloudflare Tunnel / ngrok
  • HashiCorp Vault
  • NextDNS
  • Tailscale
  • TeamViewer
• Developer Tools
  • Datadog / New Relic
  • Docker Hub
  • GitHub
  • GitHub Actions
  • Jira
  • Mailtrap
  • Npm
  • Postman
  • Resend
  • Sentry
  • SonarCloud
  • TestRail
  • UptimeRobot
• Hosting and Infrastructure
  • Algolia
  • Amazon S3
  • cPanel
  • Firebase
  • Heroku
  • Netlify
• Data and Analytics
  • Fivetran
  • Google Analytics
  • Hotjar / Mixpanel
  • Segment
• Marketing and Sales
  • Apollo.io / Outreach
  • Bitly
  • Buffer / Hootsuite
  • Canny
  • Common Room / Pocus
  • Linktree
  • Mailchimp
  • SurveyMonkey
  • Typeform
• Publishing and Social
  • Facebook
  • Hacker News
  • Instagram
  • Medium / Substack
  • WordPress.com / Wix
• Business
  • HireVue
  • Hubspot
  • Intercom
  • Pipedrive
  • Salesforce
  • SAP
  • Shopify
  • Square POS / Clover
  • Zendesk
• Personal and Home
  • Alexa / Google Home
  • Flightradar24
  • MyFitnessPal
  • Paprika
  • Ring
  • Splitwise
  • YNAB
• Contributing

AI Assistants and Coding

Character.ai

• SillyTavern - Needs a local model or an LLM API.

ChatGPT / Claude

• Ollama - Run open models locally. Local models are below frontier quality and need a good GPU.
• Open WebUI - Chat interface for Ollama and OpenAI-compatible APIs.

Gamma

• Presenton

GitHub Copilot / Cursor

• Continue
• Tabby - Self-hosted; needs a GPU for good performance.

Lovable / Bolt / v0

• bolt.diy

NotebookLM

• AnythingLLM
• Open Notebook

Perplexity

• Vane - Formerly Perplexica. Pair it with SearXNG for search.

Audio and Voice

ElevenLabs

• Applio - Voice changer. Needs a GPU.
• F5-TTS - Needs a GPU.
• pyVideoTrans - Video dubbing and translation.
• RVC - Voice changer. Needs a GPU.
• XTTS - Text to speech and voice cloning. Needs a GPU.

Lalal.ai

• Ultimate Vocal Remover

Otter.ai

• Buzz
• faster-whisper
• Meetily
• Vibe
• WhisperX - Adds speaker diarization.
• YazSes

Speechify

• Kokoro

Suno

• ACE-Step - Needs a GPU. Quality is well below Suno.
• YuE - Needs a GPU. Quality is well below Suno.

Wispr Flow

• FreeFlow
• OpenWhispr
• VoiceInk
• VoiceTypr
• Yap

Design and Photo

Adobe Illustrator

• Inkscape
• VectorCraft - Early alpha.

Adobe InDesign

• DesignCraft - Early alpha.
• Scribus

Adobe Lightroom

• darktable
• LightCraft - Early alpha.
• LightTable
• RawTherapee

Adobe Photoshop

• GIMP
• Krita
• Krita AI Diffusion - Generative fill for Krita. Needs a GPU.
• PhotoCraft - Early alpha. Opens and saves PSD files.

Canva

• Penpot - Partial replacement.

Figma

• Penpot

Meshy

• Hunyuan3D - Text or image to 3D. Needs a GPU.
• TRELLIS - Text or image to 3D. Needs a GPU.

Midjourney / DALL·E

• ArtCraft - Hosted generation uses paid credits.
• ComfyUI - Runs Flux, SDXL and other image models. Needs a GPU.

Remove.bg

• rembg

Topaz Photo AI

• Upscayl

Video

Adobe After Effects

• EffectCraft - Early alpha.
• Natron

Adobe Premiere Pro

• FilmCraft - Early alpha. Can't open .prproj files.
• Kdenlive
• Shotcut

Descript

• auto-editor - Removes silences automatically.

HeyGen / D-ID

• LivePortrait - Needs a GPU.
• MuseTalk - Needs a GPU.

Opus Clip

• AI-Youtube-Shorts-Generator
• FunClip
• OpenShorts

Runway / Kling

• HunyuanVideo - Needs a GPU with a lot of VRAM.
• LTX-Video - Needs a GPU with a lot of VRAM.
• Wan - Needs a GPU with a lot of VRAM.

Documents and Writing

Adobe Acrobat

• OCRmyPDF
• PDF Arranger
• PdfCraft - Early alpha.
• Stirling PDF

DeepL

• LibreTranslate

Grammarly

• LanguageTool

Marked

• Glim - macOS Markdown preview with Mermaid diagrams, formulas and basic source editing.

Mathpix

• Marker - PDF to Markdown, including formulas.
• MinerU
• PaddleOCR

Learning

Codecademy / LeetCode

• Judge0 - Code execution engine for building coding exercises. Needs cgroups v1.

Quizlet

• Anki
• Ordkort
• Revu

Media and Entertainment

Audible

• Audiobookshelf

Kindle Unlimited

• Calibre-Web
• Kavita

Netflix

• Jellyfin - For your own media library.

Spotify

• Jellyfin - For your own music library.
• Navidrome - For your own music library.

Twitch

• Owncast

YouTube

• PeerTube

Cloud Storage and Office

Google Calendar

• Radicale - CalDAV and CardDAV server.

Google Docs

• Collabora Online
• CryptPad
• HedgeDoc - Collaborative Markdown editor, successor of CodiMD.
• ONLYOFFICE

Google Drive

• Nextcloud
• ownCloud
• Seafile
• Syncthing - File sync between devices, without a server.

Google Maps Timeline

• Dawarich

Google Photos

• Immich
• LibrePhotos - Successor of Ownphotos.
• PhotoPrism

WeTransfer

• FileShot

Notes and Productivity

Asana

• Leantime
• Orbit

Calendly

• Cal.diy - Open-source edition of Cal.com.

Evernote

• Joplin - Includes OCR for attachments.
• Koru
• Trilium

Feedly

• FreshRSS
• Miniflux

Miro

• tiko

Notion

• AFFiNE
• AppFlowy
• Outline

Pocket / Instapaper

• Readeck
• Wallabag

Todoist

• Vikunja

Trello

• Kanboard
• Planka
• Taiga
• Wekan

Workona / Toby

• Tabox

Zapier

• Activepieces
• Huginn
• n8n - Uses a fair-code license, not an OSI-approved one.

Communication

Disqus

• Isso
• Remark42

Slack

• Element - Matrix client, formerly Riot.
• Mattermost
• Mezon
• Rocket.Chat
• Wire
• Zulip

Zoom

• Jitsi Meet

Security and Networking

1Password

• Bitwarden
• KeePassXC
• Padloc
• Passwordcockpit
• Vaultwarden - Lightweight server compatible with Bitwarden clients.

Auth0

• Authentik
• Authgear
• Keycloak

Cloudflare Tunnel / ngrok

• frp
• NSL.SH
• Pangolin

HashiCorp Vault

• OpenBao

NextDNS

• AdGuard Home
• Pi-hole

Tailscale

• Headscale

TeamViewer

• Apache Guacamole
• MeshCentral
• RustDesk

Developer Tools

Datadog / New Relic

• Grafana - Pair it with Prometheus.
• SigNoz

Docker Hub

• Harbor

GitHub

• Forgejo
• Gitea
• GitLab CE
• Gogs
• OneDev
• Pagure

GitHub Actions

• act - Runs GitHub Actions locally.
• Jenkins
• Woodpecker CI

Jira

• OpenProject
• Plane
• Redmine

Mailtrap

• Mailpit - Email testing.

Npm

• Nexus
• Verdaccio

Postman

• Bruno
• Hoppscotch - Formerly Postwoman.
• Voiden

Resend

• MailySend

Sentry

• GlitchTip
• Sentry self-hosted

SonarCloud

• SonarQube Community

TestRail

• Kiwi TCMS

UptimeRobot

• Uptime Kuma

Hosting and Infrastructure

Algolia

• Elasticsearch
• Meilisearch
• OpenSearch
• Sonic
• Typesense

Amazon S3

• Ceph
• Garage
• OpenStack Swift
• SeaweedFS

cPanel

• HestiaCP
• Vesta
• Webmin

Firebase

• Appwrite
• Supabase

Heroku

• CapRover
• Coolify
• Dokku
• OpenFaaS
• Peon
• Tsuru

Netlify

• Coolify

Data and Analytics

Fivetran

• Airbyte
• Bruin
• dlt
• ingestr
• Meltano

Google Analytics

• Ackee
• Countly
• Fathom Lite
• Matomo
• Plausible
• Umami

Hotjar / Mixpanel

• PostHog

Segment

• RudderStack

Marketing and Sales

Apollo.io / Outreach

• OpenLeads
• Warmbly

Bitly

• Shlink
• YOURLS

Buffer / Hootsuite

• OpenPost

Canny

• Fider

Common Room / Pocus

• Beton Inspector

Linktree

• LinkStack
• LittleLink

Mailchimp

• Listmonk

SurveyMonkey

• LimeSurvey

Typeform

• Formbricks

Publishing and Social

Facebook

• Mastodon

Hacker News

• Kiwi News
• Lemmy
• Lobsters

Instagram

• Pixelfed

Medium / Substack

• Ghost
• WriteFreely

WordPress.com / Wix

• Ghost
• WordPress

Business

HireVue

• Aural - AI interview platform for voice, chat and video interviews.

Hubspot

• Customermates
• Erxes
• Twenty

Intercom

• Chaskiq
• Chatwoot

Pipedrive

• Warpdrive

Salesforce

• Corteza - Formerly Crust CRM.
• Customermates
• IDURAR ERP CRM
• Odoo
• SuiteCRM
• Twenty

SAP

• ERPNext
• Odoo

Shopify

• Bagisto
• Medusa
• PrestaShop
• Saleor
• Shopaholic
• Sylius
• WooCommerce

Square POS / Clover

• Open Source POS

Zendesk

• Faveo
• FreeScout
• Handesk
• osTicket
• UVDesk
• Zammad
• Znuny - Maintained fork of OTRS Community Edition.

Personal and Home

Alexa / Google Home

• Home Assistant

Flightradar24

• Velocity

MyFitnessPal

• wger

Paprika

• Mealie
• Tandoor

Ring

• Frigate - NVR with local object detection for your own cameras.

Splitwise

• Spliit

YNAB

• Actual Budget
• Firefly III

Contributing

Pull requests are welcome. To keep the list useful:

1. Open source only. The project must have public source code under an OSI-approved license. Note any licensing caveat (fair-code, open core, paid features).
2. Real alternatives. It must replace the paid app. CLIs or SDKs for a paid service don't count.
3. Maintained and used. No archived repos or repos without commits in the last year. Brand-new projects with very few users may be asked to come back later.
4. Link to the source repository, not the marketing site.
5. Format. Use - [Name](repo-link) - Optional short description., alphabetical within each app. New apps go under the right category, alphabetical, with a matching entry in Contents.
6. Disclose affiliation in the PR description if you work on the project.