Projects, time tracking, resourcing, client portal, budgets and invoices in one AGPL-3.0 platform. The PSA loop for agencies and service firms, without enterprise quotes or MSP ticketing you'll never use.
Free trial, no credit card required. Or self-host the Community edition free.
Plan the engagement, schedule the people, capture the hours, watch the budget, send the invoice. Worklenz runs that loop in one system, on Worklenz Cloud or on your own Docker host.
Consultants log time on engagement tasks with a timer or manual entries, each marked billable or not. Logged hours and costs build up against the project budget, and invoices are created in the same place. The gap where revenue usually leaks, between the timesheet export and the billing tool, closes.
The scheduler shows every consultant's allocations across engagements, with capacity and conflicts; the workload view shows who is overbooked and who has room. Clients log in to their own portal to raise requests, follow status and chat with your team instead of chasing your project leads.
Agencies
Projects delivered
Billable hours captured
See what our customers have to say about their experience with Worklenz.
We are working with Trello until we have discovered Worklenz. The boards is better than Trello bzz you can view % of tasks completed and also the roadmap is more attractive than others. We are waiting the new features that make possible importer boards and projects from other platforms to migrate and centralize all project's information in one site.
Product Manager (EdTech) and Agile Coach at The Bridge
Amaizing product which is very simple and easy to use. Worklenz has revolutionized our workflow. With its user-friendly interface and powerful features, task management is a breeze. Time tracking, insightful analytics, and seamless integrations make it a must-have for any team serious about productivity. Highly recommended!
Founder & Leadership at Loons Lab
This is an excellent product. We practically experienced how productivity can increase after fully integrating this with our daily task schedule
Senior Lecturer at Sabaragamuwa University, Sri Lanka
We are working with Trello until we have discovered Worklenz. The boards is better than Trello bzz you can view % of tasks completed and also the roadmap is more attractive than others. We are waiting the new features that make possible importer boards and projects from other platforms to migrate and centralize all project's information in one site.
Product Manager (EdTech) and Agile Coach at The Bridge
Amaizing product which is very simple and easy to use. Worklenz has revolutionized our workflow. With its user-friendly interface and powerful features, task management is a breeze. Time tracking, insightful analytics, and seamless integrations make it a must-have for any team serious about productivity. Highly recommended!
Founder & Leadership at Loons Lab
This is an excellent product. We practically experienced how productivity can increase after fully integrating this with our daily task schedule
Senior Lecturer at Sabaragamuwa University, Sri Lanka
Most open source PSA options are MSP suites or ERP projects. Worklenz is neither.
Agencies, consulting, development, design, engineering: project-shaped work with budgets and deadlines. Not helpdesk tickets, not RMM contracts.
Project budgets, rate cards, costs and invoices without deploying a full ERP like ERPNext and customising it into a PSA over a quarter.
The self-hosted Community edition has no user cap. Staff up for the big engagement without a licensing conversation.
Self-host on your own infrastructure with PostgreSQL underneath, so partners can run a custom report straight from the data when they need one.
Allocations, capacity and conflicts visible weeks ahead.
Invoices created from the project, marked paid when the money lands.
Deliverables attached to the work, on your own S3-compatible storage when self-hosted.
Your delivery methodology as a reusable project template.
Discovery to handover, tracked as stages clients understand.
Bring projects over from Asana, Trello, Jira, ClickUp, Monday or CSV.
Search for open source professional services automation software and the results skew MSP: ITFlow (AGPL-3.0, built around tickets, assets and recurring IT contracts) and Alga PSA from Nine Minds (AGPL-3.0 core with a separately licensed enterprise edition). Both are genuinely open source and genuinely useful if you run a managed services business with a helpdesk at its centre.
Agencies and professional services firms (consultancies, dev shops, design studios, engineering practices) work differently: project engagements with budgets, staffing plans and deliverables. For them the MSP suites carry the wrong building blocks. The other common suggestion, customising an ERP such as ERPNext into a PSA, works, but it's an implementation project of its own.
Worklenz fills that specific gap: an AGPL-3.0 platform whose building blocks are projects, people, hours, budgets, clients and invoices.
An engagement starts as a project, usually from a template carrying your methodology's phases. The resource scheduler allocates consultants based on real capacity, time off and holidays. As work proceeds, timers and manual logs capture hours, marked billable or not, and project finance compares costs against the budget. Billable work turns into invoices created inside Worklenz. Throughout, the client follows progress and raises requests in their portal instead of asking for status decks.
Every step reads and writes the same database, which is the point of PSA: one version of the truth from staffing call to paid invoice. On Worklenz Cloud, time tracking and the workload view start on the Pro plan, and the client portal, invoicing and project finance are on Business.
Self-hosting is a Docker deployment: clone github.com/Worklenz/worklenz, run ./quick-setup.sh, and the stack (API, frontend, PostgreSQL, Redis and S3-compatible storage) comes up on your infrastructure. The Community edition is free under AGPL-3.0 with unlimited users. Self-hosted Business adds priority support, advanced reporting, custom branding, SSO and backup and restore; talk to sales for pricing.
Worklenz Cloud runs the same product without the server work. Plans are billed per active user, and Pro and Business come with a free trial that needs no credit card; see the pricing page for current prices. Firms with client data restrictions often start on cloud and move to self-hosted before onboarding the sensitive account.
The realistic open source shortlist and where each fits.
| Worklenz | ITFlow / Alga PSA / ERPNext | |
|---|---|---|
| Built for | Agencies and project-based service firms | MSPs (ITFlow, Alga PSA); general ERP (ERPNext) |
| Project budgets & costs | Built in | Partial; ERPNext after customisation |
| Resource scheduling & workload | Built in | Limited or needs extra modules |
| Invoicing | Built in | ITFlow yes (IT-focused); ERPNext yes |
| Client portal | Requests, status, chat | Ticket portals (MSP tools) |
| Setup effort | Docker quick-setup script | Same day (ITFlow) to weeks (ERPNext as a PSA) |
| License | AGPL-3.0 | ITFlow AGPL-3.0; Alga PSA AGPL-3.0 (+ EE); ERPNext GPL-3.0 |
Licences checked on GitHub, November 2026. All projects evolve; check current docs.
Common questions about Worklenz as an open source PSA
Professional services automation (PSA) software runs the business side of project work: projects, resourcing, time tracking, budgets and billing in one system. It's built for firms whose revenue comes from their people's time, such as agencies and consultancies.
A PSA. Project management is one part of it; Worklenz adds the services business around it: resourcing, time tracking, project finance, a client portal and invoicing. That's what separates it from open source task trackers.
ITFlow and Alga PSA are built for MSPs: ticketing, asset management and recurring IT contracts. Worklenz is built for project-based services: engagements with budgets, staffed by people, delivered in phases. Pick by the shape of your revenue.
No. Worklenz is for firms that sell time on projects, not IT support tickets. If you need ticketing, RMM and contract billing, look at ITFlow, Alga PSA, HaloPSA or ConnectWise.
For the delivery core (projects, resourcing, time, budgets, invoicing and client visibility), often yes, at a fraction of the cost. Enterprise PSA platforms go deeper on revenue forecasting and CRM-driven quoting. Worklenz doesn't include a CRM, so it sits alongside the one you already use.
AGPL-3.0 lets you run, inspect, modify and self-host Worklenz. Internal modifications can stay private; if you offer a modified version to others over a network, you must make your modified source available to them.
Not for the self-hosted Community edition: it's free at any headcount. Self-hosted Business (priority support, SSO, custom branding, backup and restore) is priced through sales. Worklenz Cloud plans are billed per active user; see the pricing page.
On cloud, minutes: start a free trial of Business to use the full PSA loop. Self-hosted, typically the same day with the Docker quick-setup script. Importing existing projects from Asana, Trello, Jira, ClickUp, Monday or CSV is usually the longest step.
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