All categories

Sales & Booking

Close the deal: let customers book time with you, sign contracts online and ring up sales in person.

Scheduling

Easy!Appointments

Scheduling4.4kGPL-3.0
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Let customers book appointments with you online, synced to Google Calendar.

Replaces Calendly, Acuity Scheduling, Square Appointments

  • Self-host
  • Some setup

Rallly

Scheduling5.3kAGPL-3.0

Find the best meeting time with a quick poll. No sign-up needed.

Replaces Doodle

  • Hosted plan
  • Self-host
  • Beginner-friendly

Cal.diy

Scheduling49kMIT

The open-source community edition of Cal.com scheduling.

Replaces Calendly

  • Self-host
  • Best with tech help

Self-host only. The hosted Cal.com service is a separate commercial product.

E-signatures

Documenso

E-signatures15kAGPL-3.0
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Send contracts and get them signed online.

Replaces DocuSign, Adobe Acrobat Sign

  • Hosted plan
  • Self-host
  • Beginner-friendly

OpenSign

E-signatures7.1kAGPL-3.0 (core)

E-signatures with templates, reminders and audit trails.

Replaces DocuSign, Dropbox Sign

  • Hosted plan
  • Self-host
  • Beginner-friendly

Point of sale

Open Source POS

Point of sale4.4kMIT
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Point of sale for retail: sales, inventory, customers and receipts.

Replaces Square POS, Lightspeed, Clover

  • Self-host
  • Best with tech help