#1
Cal.com

Cal.com

★★★★ 4.4 Free / $12+ Free plan

Open-source scheduling platform and Calendly alternative with self-hosting and full customization.

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✓ Open-source and self-hostable✓ Unlimited event types on free plan✓ Full API and webhook access
#2
Mistral AI

Mistral AI

★★★★ 4.3 Free / $14.99+ Free plan

European AI lab offering open-weight and commercial LLMs with Le Chat conversational interface and enterprise API.

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✓ Open-weight models available for self-hosting✓ Excellent multilingual performance especially in European languages✓ Fast inference speeds
#3

SeaTable

★★★★ 4.2 Free / $7+ Free plan

Self-hostable online database with spreadsheet interface, combining the ease of a spreadsheet with the power of a database, with Python scripting support.

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✓ Self-hostable with Docker✓ Python scripting for automation✓ GDPR-compliant European hosting

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