Open-source alternatives guide · Updated 2026

Best open-source alternatives to Harvest

Compare the best free and open-source alternatives to Harvest — 1 verified project with explicit catalog relationships. Inspect licenses, GitHub activity, self-hosting signals, and migration fit before you switch.

1verified alternative
1self-hosted signals
1category

Only explicit alternative relationships are shown—never inferred competitor claims.

Overview

The catalog currently lists one verified open-source alternative to Harvest: Kimai.

Kimai is categorized under Business Software and carries a self-hosting signal. Review its project page, license, repository activity, and documentation before treating it as a production replacement.

Strongest repository-activity signal: Kimai · Jump to ranking · 4.8K stars · self-hostable

About Harvest

Proprietary product with documented open-source alternatives cataloged on OpenSourceChoice. Compare licenses, repository activity, and self-hosting options befo

Ranked open-source alternatives to Harvest

Compare capabilities, licensing, and ownership model. Stars help with discovery; they are not a security or product-fit guarantee.

Kimai

Open-source alternative to Harvest

Business SoftwareAGPL-3.0Self-hosted

Kimai is the #1 open-source time-tracking application. From freelancers to companies and organisations - everyone can manage timesheets, generate reports, create invoices and so much more... Web-based multi-user applicat

Kimai is the #1 open-source time-tracking application. From freelancers to companies and organisations - everyone can manage timesheets, generate reports, create invoices and so mu

Best for: Operations teams
Deployment: Self-hostable
License: AGPL-3.0
Activity: Updated 31 hours ago

Key capabilities

self-hosted

php time-tracker time-tracking

How to choose a Harvest alternative

Map must-have capabilitiesList the workflows in Harvest you cannot drop during migration.

Verify the licenseConfirm it fits your use, distribution, and compliance model. Browse license briefs.

Run a proof of conceptTest real data, integrations, clients, and failure modes. Use Compare for side-by-side checks.

Plan ownershipAssess upgrades, backups, support, and an exit path. Read when self-hosting is worth it.

Frequently asked questions about Harvest alternatives

What are the best open-source alternatives to Harvest?

OpenSourceChoice currently lists 1 project with an explicit alternative relationship to Harvest. Catalog highlights include Kimai. Rankings follow public GitHub stars and recorded momentum—not paid placement. Match capabilities and license fit to your workflow before adopting any option.

Are open-source alternatives to Harvest free?

Most catalogued alternatives publish source under OSI or source-available licenses and are free to inspect. Hosting, commercial support, or cloud model APIs may still cost money. Always read the project license for your use case.

Can I self-host an alternative to Harvest?

1 option in this list carry a self-hosting signal. Confirm the official install guide, backups, upgrades, and hardening steps before production.

How should I evaluate Harvest alternatives?

Map must-have Harvest workflows, verify license and compliance fit, run a proof of concept with real data and integrations, then plan ownership for upgrades, backups, support, and an exit path.