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Open Source Application Development Software (2026) - Page 2
Last updated: February 2026
43 software options
Sponsored
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Platform for encoding and prototyping web applications
CodeSandbox offers a free trial for new users, after which the software is available across 3 pricing tiers, details of which are outlined below – Community – Available to users for free Pro – $12/month or $9/Month (billed annually) Pro Workspaces – Please contact CodeSandbox directly for pricing details.
Read more about CodeSandbox
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Open-source feature management platform
Unleash fits your language, your hosting needs, your work process, your business, and your budget. Unleash offers 3 pricing editions: ◼Open Source - it's a FREE and basic feature management solution hosted by you. ◼Pro - 80$/month includes 5 team members. Your team gets access to the full version managed by us. ◼Enterprise - Contact us. Includes SSO, unlimited team members, managed by us or Self-hosted. No credit card is required and the first 14 days are free. Pricing info: getunleash.io/plans
Read more about Unleash
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Open-source feature flag & remote configuration solution
Flagsmith has a free forever plan that has unlimited Feature Flags, unlimited environments, and unlimited identities and segment. It scales up to 50,000 API calls per month. Paid plans scale as you do based on API calls and team members. Free - $0; Start-Up - $45; Scale-Up - $200; Enterprise - Contact Us!
Read more about Flagsmith
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cloud-based Kotlin injection framework
Read more about Koin LTS
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Low code platform that limits the vendor lock-In effect
Pricing starts at 15€ / User / Month for B2E / B2C Named users. For B2C users, pricing is based on number of concurrent users accessing the platform. The more number of users, the more price / user is discounted. Annual Subscriptions gives 20% discount.
Read more about Convertigo
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Composable ERP solution
Read more about U-ERP
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
AI-powered platform for low-maintenance enterprise solutions
Read more about Rintagi
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Low Code Platform to build forms, workflows, and automations
Please contact formsflow.ai for pricing details.
Read more about formsflow.ai
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Developers for agile development teams.
Read more about Boost Note
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Application delivery and infrastructure management solution
Kubefirst is an open source project with cloud version planned for future updates.
Read more about Kubefirst
DevCycle is priced based on usage (monthly active users and cloud config requests) instead of seats, this means your entire organization can use DevCycle without worrying about the rising costs of scaling your feature management program company-wide. DevCycle does not require a credit card to get started and also has a Free Forever plan.
Read more about DevCycle
