Catalog
Every tool we track
Commercial and open-source alternatives across 51 categories. Open-source entries link to their source repository, and we say plainly which ones can replace the incumbent and which cannot.
Some links are affiliate links, marked affiliate. We may earn a commission at no cost to you. Commission never affects our ordering or verdicts — see our methodology.
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AI & machine learning 86
AI chat assistants 9
Google's assistant, with the longest context window of the major three.
Alternative to ChatGPT Claude
Open-weight reasoning models at a fraction of US API pricing.
Alternative to ChatGPT Claude
Open WebUI
Self-hosted chat interface for Ollama and any OpenAI-compatible API.
Alternative to ChatGPT
source ↗LibreChat
Self-hosted multi-model chat with users, roles and conversation search.
Alternative to ChatGPT
source ↗HuggingChat
Hugging Face's open chat UI running open-weight models.
Alternative to ChatGPT
source ↗AI coding assistants 7
Cline
Autonomous coding agent inside VS Code, bring your own key.
Alternative to GitHub Copilot Cursor
source ↗Continue
Open-source IDE assistant you point at any model.
Alternative to GitHub Copilot
source ↗Aider
Pair programming in the terminal that commits as it goes.
Alternative to GitHub Copilot Cursor
source ↗Zed
A fast native editor with collaboration and agents built in.
Alternative to Cursor
source ↗AI image generation 8
Generation with fine-grained control and its own model training.
Alternative to Midjourney
Trained on licensed stock, which matters for commercial use.
Alternative to Midjourney DALL·E
ComfyUI
Node-graph interface for running diffusion models locally.
Alternative to Midjourney Stable Diffusion
source ↗AI video generation 6
AI voice, speech & music 7
AI writing & editing 8
Long-form style and structure reports rather than inline fixes.
Alternative to Grammarly
Flags dense sentences and passive voice; no account needed.
Alternative to Grammarly
LanguageTool
Open-source grammar checking in 30+ languages, self-hostable.
Alternative to Grammarly
source ↗AI meeting notes 5
Notes that augment what you typed instead of transcribing everything.
Alternative to Otter.ai
AI search engines 6
Perplexica
An open-source answer engine you can run at home.
Alternative to Perplexity
source ↗AI agent frameworks 10
DSPy
Programs prompts as modules you compile rather than hand-tune.
Alternative to LangChain
source ↗LlamaIndex
Data framework for connecting models to your own documents.
Alternative to LangChain
source ↗AutoGen
Microsoft's framework for multi-agent conversations.
Alternative to LangChain
source ↗Langflow
Visual authoring for agents and RAG pipelines.
Alternative to LangChain
source ↗AI presentations 2
Vector databases 6
Weaviate
Open-source vector database with hybrid search.
Alternative to Pinecone
source ↗Qdrant
Rust vector database built for filtered search at scale.
Alternative to Pinecone
source ↗Chroma
The embedding database that starts as an import.
Alternative to Pinecone
source ↗Milvus
Distributed vector database for billion-scale collections.
Alternative to Pinecone
source ↗LLM gateways & observability 6
LiteLLM
Self-hosted proxy giving every provider an OpenAI-shaped API.
Alternative to OpenAI API
source ↗Langfuse
Open-source tracing, evals and prompt management.
Alternative to LangChain
source ↗Helicone
Observability and caching that sits in front of your calls.
Alternative to LangChain
source ↗Local LLM runners 6
Work & collaboration 66
Project management 11
OpenProject
Open-source project management with Gantt and portfolio views.
Alternative to Jira Monday.com
source ↗Plane
Modern open-source issue tracking, a Jira and Linear alternative.
Alternative to Jira Linear
source ↗Taiga
Open-source agile project management for scrum and kanban.
Alternative to Jira
source ↗Vikunja
Self-hosted task management with list, kanban and gantt views.
Alternative to Asana Trello
source ↗Notes & knowledge 9
Joplin
Open-source notes with encrypted sync and Evernote import.
Alternative to Evernote
source ↗Logseq
Outliner-style local-first knowledge base.
Alternative to Notion Evernote
source ↗Standard Notes
End-to-end encrypted notes on every tier.
Alternative to Evernote
source ↗AppFlowy
Open-source Notion alternative, local-first by design.
Alternative to Notion
source ↗Anytype
Local-first encrypted workspace and knowledge graph.
Alternative to Notion
source ↗Outline
Team wiki and knowledge base you can self-host.
Alternative to Confluence Notion
source ↗Trilium Notes
Hierarchical note-taking for building personal knowledge bases.
Alternative to Evernote
source ↗Team chat 5
Mattermost
Self-hosted team chat that closely mirrors Slack.
Alternative to Slack
source ↗Rocket.Chat
Open-source team chat plus customer-facing livechat.
Alternative to Slack Intercom
source ↗Scheduling 4
Cal.com
Open-source scheduling that can be self-hosted and white-labelled.
Alternative to Calendly
source ↗Easy!Appointments
Self-hosted appointment booking for service businesses.
Alternative to Calendly
source ↗Forms & surveys 5
Formbricks
Open-source surveys built for in-product research.
Alternative to Typeform SurveyMonkey
source ↗LimeSurvey
Long-established open-source survey platform.
Alternative to SurveyMonkey
source ↗No-code databases 5
NocoDB
Turns an existing Postgres or MySQL database into a spreadsheet UI.
Alternative to Airtable
source ↗Baserow
Open-source Airtable alternative with unlimited self-hosted users.
Alternative to Airtable
source ↗Grist
Spreadsheet-database hybrid with real Python formulas.
Alternative to Airtable
source ↗Design & whiteboards 3
Penpot
Open-source design and prototyping platform, a Figma alternative.
Alternative to Figma
source ↗Excalidraw
Hand-drawn style virtual whiteboard, self-hostable.
Alternative to Miro Figma
source ↗Screen recording 2
Graphics & photo editing 13
GIMP
The long-standing free photo editor; deep, but its own way of working.
Alternative to Adobe Photoshop
source ↗Krita
Open-source painting and illustration, built by and for digital artists.
Alternative to Adobe Photoshop
source ↗A Photoshop-like editor in the browser that opens PSD files.
Alternative to Adobe Photoshop
Professional photo editing sold outright rather than by subscription.
Alternative to Adobe Photoshop Adobe Creative Cloud
Inkscape
Open-source vector illustration, the usual Illustrator replacement.
Alternative to Adobe Creative Cloud
source ↗Browser-based editing and templates aimed at quick social assets.
Alternative to Canva Adobe Photoshop
Scribus
Open-source desktop publishing for print-ready layouts.
Alternative to Adobe Creative Cloud
source ↗Professional video editing and colour grading with a free tier.
Alternative to Adobe Creative Cloud
Video conferencing 4
Jitsi Meet
Open-source video meetings you can self-host, no account needed.
Alternative to Zoom
source ↗BigBlueButton
Open-source conferencing built specifically for teaching.
Alternative to Zoom
source ↗Website builders 5
Business & sales 69
CRM & sales 7
Twenty
Modern open-source CRM built as a Salesforce alternative.
Alternative to Salesforce HubSpot
source ↗EspoCRM
Mature open-source CRM that is quick to self-host.
Alternative to Salesforce
source ↗Sales intelligence & data 4
Accounting & invoicing 7
Akaunting
Self-hosted open-source accounting with a modular design.
Alternative to QuickBooks
source ↗Invoice Ninja
Open-source invoicing, quotes and payments platform.
Alternative to QuickBooks FreshBooks
source ↗Firefly III
Self-hosted personal finance manager and budgeting tool.
Alternative to QuickBooks
source ↗MailToInvoice
Forward a client email and get back a branded, payable invoice.
One of ours — trying it helps pay for this directory. The alternatives below stay listed either way.
Alternative to QuickBooks FreshBooks
Helpdesk & ticketing 6
osTicket
Long-running open-source support ticket system.
Alternative to Zendesk Freshdesk
source ↗FreeScout
Self-hosted shared inbox and helpdesk, a Help Scout alternative.
Alternative to Help Scout Zendesk
source ↗E-signature 3
Straightforward e-signature with simpler pricing than DocuSign.
Alternative to DocuSign
Email marketing 5
E-commerce 5
Medusa
Open-source commerce engine for custom storefronts.
Alternative to Shopify
source ↗WooCommerce
The WordPress commerce plugin, self-hosted and extensible.
Alternative to Shopify
source ↗Field service & trades 6
FieldFix
Fleet tracking, maintenance logs and AI diagnostics for heavy equipment owners.
One of ours — trying it helps pay for this directory. The alternatives below stay listed either way.
Alternative to Fleetio
JobArrival
A branded, customer-facing view of a job's arrival window and place in the queue.
One of ours — trying it helps pay for this directory. The alternatives below stay listed either way.
Alternative to Jobber Housecall Pro
Fleet maintenance, inspections and parts tracking for mixed equipment.
Alternative to ServiceTitan
Scheduling, dispatch and invoicing aimed at small field-service teams.
Alternative to ServiceTitan Jobber
Job management for very small trade businesses, strongest on iOS.
Alternative to Jobber Housecall Pro
Payments & checkout 9
Merchant of record aimed at small digital-product sellers.
Alternative to Stripe Paddle
SEO & keyword research 6
Your own real search data, free, straight from Google.
Alternative to Semrush Ahrefs
IT service management 4
Developer & infrastructure 52
API clients 3
Bruno
Offline API client storing collections as files in your repo.
Alternative to Postman
source ↗Insomnia
Polished API client with strong GraphQL and gRPC support.
Alternative to Postman
source ↗Hoppscotch
Browser-based API client that can be self-hosted.
Alternative to Postman
source ↗Hosting & PaaS 10
Coolify
Self-hosted PaaS — git-push deploys on your own VPS.
Alternative to Heroku Vercel
source ↗CapRover
Self-hosted PaaS with a web UI and one-click apps.
Alternative to Heroku
source ↗Identity & SSO 5
Keycloak
The open-source standard for self-hosted SSO, backed by Red Hat.
Alternative to Okta Auth0
source ↗Authentik
Modern self-hosted identity provider, friendlier than Keycloak.
Alternative to Okta Auth0
source ↗Zitadel
Open-source identity with multi-tenancy and a managed cloud.
Alternative to Okta Auth0
source ↗SuperTokens
Open-source authentication built for developers to embed.
Alternative to Auth0
source ↗Monitoring & observability 8
Grafana
The open-source standard for dashboards and visualisation.
Alternative to Datadog
source ↗Prometheus
Open-source metrics collection and alerting, the CNCF standard.
Alternative to Datadog
source ↗SigNoz
Open-source metrics, traces and logs in a single product.
Alternative to Datadog New Relic
source ↗Uptime Kuma
Self-hosted uptime monitoring with a very clean interface.
Alternative to Datadog Pingdom
source ↗Netdata
Real-time infrastructure monitoring with per-second resolution.
Alternative to Datadog
source ↗Zabbix
Enterprise-grade open-source infrastructure monitoring.
Alternative to Datadog
source ↗Uptime, logs and incident management, quick to set up.
Alternative to Datadog PagerDuty
Workflow automation 6
n8n
Self-hostable workflow automation with code steps built in.
Alternative to Zapier Make
source ↗Activepieces
Open-source automation that is friendlier than n8n.
Alternative to Zapier
source ↗CMS & site builders 3
Data cleaning & dedupe 2
Dedupe.dev
Removes duplicates from Excel, CSV, text and JSON entirely in your browser.
One of ours — trying it helps pay for this directory. The alternatives below stay listed either way.
Alternative to OpenRefine
OpenRefine
Powerful open-source desktop tool for cleaning and reconciling messy data.
source ↗Git hosting 5
GitLab
Repos, CI and issues in one platform, self-hostable.
Alternative to GitHub
source ↗Gitea
Lightweight self-hosted Git that runs on very little.
Alternative to GitHub
source ↗Containers & runtimes 5
Podman
Daemonless, rootless containers with a Docker-compatible CLI.
Alternative to Docker
source ↗containerd
The runtime Docker and Kubernetes actually use underneath.
Alternative to Docker
source ↗Incus
System containers and VMs; a community fork of LXD.
Alternative to Docker
source ↗SMS, voice & messaging APIs 5
Data, storage & security 28
Web analytics 4
BI & dashboards 5
Metabase
Open-source BI that non-technical people actually use.
Alternative to Tableau Looker
source ↗Apache Superset
Open-source data exploration and dashboarding at scale.
Alternative to Tableau Power BI
source ↗Redash
Query, visualise and share results from any data source.
Alternative to Tableau
source ↗Cloud storage & file sync 9
pCloud affiliate
Swiss cloud storage with one-time lifetime plans.
Alternative to Dropbox Google Drive
Zero-knowledge encrypted storage under Canadian jurisdiction.
Alternative to Dropbox Google Drive
End-to-end encrypted Swiss storage from the Proton suite.
Alternative to Google Drive Dropbox
Nextcloud
Self-hosted file sync, calendar and collaboration suite.
Alternative to Dropbox Google Drive
source ↗Seafile
Self-hosted file sync focused on speed and reliability.
Alternative to Dropbox
source ↗ownCloud
The original self-hosted file-sync platform Nextcloud forked from.
Alternative to Dropbox
source ↗File Browser
Minimal self-hosted web file manager for a single server.
Alternative to Dropbox
source ↗Password managers 5
Bitwarden
Open-source, audited password manager with a usable free tier.
Alternative to 1Password LastPass
source ↗Vaultwarden
Lightweight self-hosted server compatible with Bitwarden clients.
Alternative to 1Password LastPass
source ↗KeePassXC
Fully offline encrypted vault stored as a local file.
Alternative to 1Password LastPass
source ↗Password manager with built-in email aliasing from Proton.
Alternative to 1Password LastPass
Data warehouses & analytics DBs 5
ClickHouse
Extremely fast open-source columnar database for analytics.
Alternative to Snowflake
source ↗DuckDB
An analytics database that runs in-process, no server at all.
Alternative to Snowflake
source ↗AWS's warehouse, cheapest if your data already lives there.
Alternative to Snowflake
Social media management 7
Heavy Metric
Done-for-you social content for service businesses, built from their own photos and reviews.
♥ One of ours — trying it helps pay for this directory. The alternatives below stay listed either way.
Alternative to
Hootsuite
Buffer
Buffer
Simple scheduling across the major networks, with a usable free tier.
Alternative to
Hootsuite
Later
Visual planning and scheduling, strongest for Instagram-led brands.
Alternative to
Hootsuite
Publer
Scheduling and bulk publishing at a notably lower price point.
Alternative to
Hootsuite
Metricool
Scheduling plus analytics and competitor tracking in one tool.
Alternative to
Hootsuite
Sprout Social
Postiz
Open-source scheduling you can self-host, with an AI assist.
Alternative to
Hootsuite
Buffer
source ↗Mixpost
Self-hosted social scheduling with no per-post limits.
Alternative to
Hootsuite
Buffer
source ↗