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๐ŸงญProductivity & Collaboration · Time Tracking & InvoicingOpen SourceFree
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Solidtime

The modern open-source time tracker for freelancers and agencies โ€” tracking, reporting and invoicing in one place

Pricing:Free hosted tier + paid plans; or self-host for free
License:AGPL-3.0
Platform:Web, desktop apps (macOS/Windows/Linux), browser extension
Hosting:Hosted SaaS (EU) or self-hosted
Account:Required
Added:2026-10-12
Last verified:October 2026

Website: https://www.solidtime.io/ ยท Source: GitHub ยท License: AGPL-3.0 ยท Origin: Made in Europe (Vienna)

Why it exists

Freelancers and agencies juggle three tools that should be one: a timer (Toggl), a project manager (Jira/Asana) and an invoicing tool (FreshBooks) โ€” each with its own subscription, and none of them self-hostable on fair terms. Solidtime's pitch: one source of truth for hours. Track time, see billable totals and project budgets update live, and turn billable hours into polished invoices โ€” as an EU-hosted, GDPR-friendly hosted service or as a fully self-hosted open-source app. 15,000+ users, 1,000+ self-hosted servers and 8,600+ GitHub stars show the demand.

Main features

  • Time tracking โ€” one-click timer, calendar view, and a spreadsheet-style weekly timesheet grid for logging whole weeks at once (with "copy last week" for repeating work), plus break tracking that stays separate from work time.
  • Reporting โ€” filter and group by member, project, client, task, tag or billable state across any date range; trend analysis; shareable read-only report links; clean PDF/CSV/Excel exports.
  • Invoicing โ€” turn billable hours into invoices in seconds: polished PDFs, EU-ready e-invoices (EN 16931 compliant), VAT rates, discounts, EU reverse-charge, and reusable company/client templates.
  • Project management โ€” projects with hourly rates, budgets and live spend tracking; multi-org workspaces; role-based access; public/private project visibility.
  • Desktop app (macOS/Windows/Linux) โ€” automatic activity tracking (which app/document is in focus), idle detection ("you were away 14m โ€” keep or discard?"), and window-activity statistics that stay on your machine until you turn them into a time entry. Privacy-first, local only.
  • Browser extension โ€” track time from inside web tools.
  • Imports & integrations โ€” one-click imports from the trackers you're leaving behind, issue-tracker integrations, and an open REST API.

Who it's for

  • Freelancers who bill by the hour and want tracking โ†’ reporting โ†’ invoice with zero copy-paste.
  • Agencies needing per-project rates, budgets, team roles and client-ready reports.
  • EU-based businesses that need GDPR-friendly hosting and EN 16931 e-invoicing.
  • Self-hosters: the AGPL-3.0 license and Docker deployment make it a natural companion to Nextcloud/YunoHost setups.

How it compares

ToolModelSelf-hostInvoicing
SolidtimeOSS (AGPL) + fair hosted tiersYesBuilt-in, EU e-invoice
Toggl TrackCommercial SaaSNoPartial (via integrations)
ClockifyFreemium SaaSNoPaid feature
KimaiOpen sourceYesAdd-on plugins

Solidtime is essentially "what Toggl would be if it were open source and European": modern UI, honest privacy posture, and invoicing included instead of sold separately.

Notes

  • Bootstrapped, not VC-funded; made in Vienna.
  • Recent releases: break tracking, timesheet week view, reusable invoice recipients, public/private project visibility.
  • The desktop app's activity data is explicitly local-only until the user logs it โ€” a rare, clearly stated privacy boundary in this category.