Open source focus
Open Source Alternatives to Appointy
60 open source Appointment Scheduling Software options similar to Appointy, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Each profile notes license and self-hosting where we have it.
- SPSPS Commerce85SaaSMinneapolis, United States$7.5M
Open source
1Password85CybersecurityToronto, Canada$1.2BOpen source
Cvent85Event Management SoftwareTysons, United States$232.0MOpen source
Okta79SaaSSan Francisco, United States$187.0MOpen source
ElevenLabs79AILondon, United Kingdom$1.6BOpen source
Hugging Face76AINew York, United States$395.2MOpen source · Self-hostable
Alchemy76BlockchainSan Francisco, United States$450.0MOpen source
Octopus Energy76EnergyLondon, United Kingdom$800.0MOpen source
Grafana Cloud74ObservabilityNew York, United States$2.1BOpen source · Self-hostable
- BABackblaze73SaaSSan Mateo, United States$13.0M
Open source
Stripe, Inc.72BillingSouth San Francisco, United States$11.4BOpen source
WorkOS71Developer ToolsSan Francisco, United States$198.0MOpen source
- LALacework70AISan Jose, United States$1.3B
Open source
Chargebee69FintechChennai, India$303.0MOpen source
- UPUpvest69FintechBerlin, Germany$392.0M
Open source
QuickNode69BlockchainMiami, United States$95.0MOpen source
XBOW69CybersecuritySeattle, United States$215.0MOpen source
Stripes AI68FintechSouth San Francisco, United States$25.4MOpen source
- VEVeeva Systems67SaaSPleasanton, United States$7.0M
Open source
Paddle67FintechLondon, United Kingdom$318.0MOpen source
Pantheon Platform67WebOpsVancouver, CanadaOpen source · Self-hostable
Chainalysis67FintechNew York, United States$170.0MOpen source
Phantom66FintechSan Francisco, United States$268.0MOpen source
Pendo66Product AnalyticsRaleigh, United States$458.5MOpen source
WP Engine65InternetAustin, United States$251.2MOpen source
Assent65Supply Chain ManagementOttawa, CanadaOpen source
Zendesk65Customer ServiceSan Francisco, United States$500KOpen source
Firebolt65Cloud Data WarehousePalo Alto, United States$269.0MOpen source
Tracebit63CybersecurityLondon, United Kingdom$25.0MOpen source
- RORoam Research63SaaSSan Francisco, United States$9.0M
Open source
XMTP63AISan Francisco, United States$49.9MOpen source
Kyruus63HealthTechBoston, United States$35.0MOpen source
- CHCheckly63SaaSBerlin, Germany$32.3M
Open source
Twilio63SaaSSan Francisco, United States$130.0MOpen source
Dune Analytics62FintechOslo, Norway$79.4MOpen source
- STStackOne62AILondon, United Kingdom$23.6M
Open source
GreytHR62HR TechBangalore, India$5.0MOpen source
NinjaOne62SoftwareAustin, United States$1.2BOpen source
- PAParagon62SaaSLos Angeles, United States$21.0M
Open source
Akeneo62Product Information ManagementNantes, France$181.5MOpen source
Ox Security62EnterpriseBoston, United States$154.0MOpen source
- TOTonic.ai62AISan Francisco, United States$43.0M
Open source
Veracode62CybersecurityBurlington, United States$40.0MOpen source
Basis Theory62FintechMill Valley, United States$50.0MOpen source
- UPUpstash62SaaSSan Jose, United States$11.9M
Open source
MetricStream61Governance, Risk, and Compliance (GRC)San Jose, United States$65.0MOpen source
Lokalise61LocalizationBerlin, Germany$56.1MOpen source
Addepar61FintechNew York City, United States$412.1MOpen source
Continue61AISan Francisco, United States$70.1MOpen source
OneSignal61Customer Engagement PlatformSan Mateo, United States$57.0MOpen source
Mindbody61SaaSSan Luis Obispo, United States$97.0MOpen source
- NANasuni61SaaSBoston, United States$219.0M
Open source
- TITigera61CybersecuritySan Francisco, United States$65.0M
Open source
Citrix Systems60Cloud ComputingFort Lauderdale, United StatesOpen source
Fair Isaac Corporation (FICO)60Financial ServicesBozeman, United StatesOpen source
JetBrains60Software DevelopmentPrague, Czech RepublicOpen source
Dataiku60Artificial IntelligenceNew York, United States$200.0MOpen source
Specter Ops59CybersecurityAlexandria, United States$100.0MOpen source
Trainline59Travel TechLondon, United Kingdom$870.0MOpen source
- AMAmigo AI58Artificial IntelligenceNew York, United States$17.3M
Open source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| SPSPS Commerce | SaaS | Open source | Minneapolis, United States | $7.5M | 85 | |
| 1Password | Cybersecurity | Open source | Toronto, Canada | $1.2B | 85 | |
| Cvent | Event Management Software | Open source | Tysons, United States | $232.0M | 85 | |
| Okta | SaaS | Open source | San Francisco, United States | $187.0M | 79 | |
| ElevenLabs | AI | Open source | London, United Kingdom | $1.6B | 79 | |
| Hugging Face | AI | Open source · Self-hostable | New York, United States | $395.2M | 76 | |
| Alchemy | Blockchain | Open source | San Francisco, United States | $450.0M | 76 | |
| Octopus Energy | Energy | Open source | London, United Kingdom | $800.0M | 76 | |
| Grafana Cloud | Observability | Open source · Self-hostable | New York, United States | $2.1B | 74 | |
| BABackblaze | SaaS | Open source | San Mateo, United States | $13.0M | 73 | |
| Stripe, Inc. | Billing | Open source | South San Francisco, United States | $11.4B | 72 | |
| WorkOS | Developer Tools | Open source | San Francisco, United States | $198.0M | 71 | |
| LALacework | AI | Open source | San Jose, United States | $1.3B | 70 | |
| Chargebee | Fintech | Open source | Chennai, India | $303.0M | 69 | |
| UPUpvest | Fintech | Open source | Berlin, Germany | $392.0M | 69 | |
| QuickNode | Blockchain | Open source | Miami, United States | $95.0M | 69 | |
| XBOW | Cybersecurity | Open source | Seattle, United States | $215.0M | 69 | |
| Stripes AI | Fintech | Open source | South San Francisco, United States | $25.4M | 68 | |
| VEVeeva Systems | SaaS | Open source | Pleasanton, United States | $7.0M | 67 | |
| Paddle | Fintech | Open source | London, United Kingdom | $318.0M | 67 | |
| Pantheon Platform | WebOps | Open source · Self-hostable | Vancouver, Canada | — | 67 | |
| Chainalysis | Fintech | Open source | New York, United States | $170.0M | 67 | |
| Phantom | Fintech | Open source | San Francisco, United States | $268.0M | 66 | |
| Pendo | Product Analytics | Open source | Raleigh, United States | $458.5M | 66 | |
| WP Engine | Internet | Open source | Austin, United States | $251.2M | 65 | |
| Assent | Supply Chain Management | Open source | Ottawa, Canada | — | 65 | |
| Zendesk | Customer Service | Open source | San Francisco, United States | $500K | 65 | |
| Firebolt | Cloud Data Warehouse | Open source | Palo Alto, United States | $269.0M | 65 | |
| Tracebit | Cybersecurity | Open source | London, United Kingdom | $25.0M | 63 | |
| RORoam Research | SaaS | Open source | San Francisco, United States | $9.0M | 63 | |
| XMTP | AI | Open source | San Francisco, United States | $49.9M | 63 | |
| Kyruus | HealthTech | Open source | Boston, United States | $35.0M | 63 | |
| CHCheckly | SaaS | Open source | Berlin, Germany | $32.3M | 63 | |
| Twilio | SaaS | Open source | San Francisco, United States | $130.0M | 63 | |
| Dune Analytics | Fintech | Open source | Oslo, Norway | $79.4M | 62 | |
| STStackOne | AI | Open source | London, United Kingdom | $23.6M | 62 | |
| GreytHR | HR Tech | Open source | Bangalore, India | $5.0M | 62 | |
| NinjaOne | Software | Open source | Austin, United States | $1.2B | 62 | |
| PAParagon | SaaS | Open source | Los Angeles, United States | $21.0M | 62 | |
| Akeneo | Product Information Management | Open source | Nantes, France | $181.5M | 62 | |
| Ox Security | Enterprise | Open source | Boston, United States | $154.0M | 62 | |
| TOTonic.ai | AI | Open source | San Francisco, United States | $43.0M | 62 | |
| Veracode | Cybersecurity | Open source | Burlington, United States | $40.0M | 62 | |
| Basis Theory | Fintech | Open source | Mill Valley, United States | $50.0M | 62 | |
| UPUpstash | SaaS | Open source | San Jose, United States | $11.9M | 62 | |
| MetricStream | Governance, Risk, and Compliance (GRC) | Open source | San Jose, United States | $65.0M | 61 | |
| Lokalise | Localization | Open source | Berlin, Germany | $56.1M | 61 | |
| Addepar | Fintech | Open source | New York City, United States | $412.1M | 61 | |
| Continue | AI | Open source | San Francisco, United States | $70.1M | 61 | |
| OneSignal | Customer Engagement Platform | Open source | San Mateo, United States | $57.0M | 61 | |
| Mindbody | SaaS | Open source | San Luis Obispo, United States | $97.0M | 61 | |
| NANasuni | SaaS | Open source | Boston, United States | $219.0M | 61 | |
| TITigera | Cybersecurity | Open source | San Francisco, United States | $65.0M | 61 | |
| Citrix Systems | Cloud Computing | Open source | Fort Lauderdale, United States | — | 60 | |
| Fair Isaac Corporation (FICO) | Financial Services | Open source | Bozeman, United States | — | 60 | |
| JetBrains | Software Development | Open source | Prague, Czech Republic | — | 60 | |
| Dataiku | Artificial Intelligence | Open source | New York, United States | $200.0M | 60 | |
| Specter Ops | Cybersecurity | Open source | Alexandria, United States | $100.0M | 59 | |
| Trainline | Travel Tech | Open source | London, United Kingdom | $870.0M | 59 | |
| AMAmigo AI | Artificial Intelligence | Open source | New York, United States | $17.3M | 58 |