Tuttle • Productivity
Private Desktop Time & Task Tracker — 100% Free Billable Hours for Freelancers
Private billable hours, project task tracking, and timesheet reports for Windows. Verified open-source alternative to Toggl Track ($10/mo), Harvest ($12/mo), Clockify. Enjoy full offline privacy, zero subscriptions, and complete ownership.

6 Core Superpowers of Tuttle
Automatic & Manual Time Tracking
One-click timer for tasks, client projects, and subtasks with automatic idle-time detection.
Visual Productivity Analytics & Reports
Generate clear daily, weekly, and monthly timesheets, category breakdowns, and client billing charts.
100% Private & Air-Gapped
No employer spying, screenshots, or third-party cloud data logging. All timesheet records stay on your local PC.
Project & Client Management
Organize unlimited clients, project budgets, and hourly rates with instant revenue calculations.
Export to CSV, Excel & PDF
Export clean timesheet data ready for client billing, payroll, or tax reporting.
Save $120+/Year on Toggl & Clockify
Enjoy all premium time-tracking features completely free forever with no per-user monthly fees.
Why Pay Subscriptions? 100% Free & Open-Source.
Track billable client hours, project tasks, and invoices 100% privately on your Windows PC. Offline time tracking with CSV, Excel & PDF export.
Paid licenses & subscriptions in the commercial market
Permissive license, unlimited local usage on your PC
No cloud telemetry, no account locking, zero vendor spying
| Key Capability | Tuttle Time & Productivity Tracker (Open-Source) | Commercial Paid Competitors |
|---|---|---|
| Yearly Subscription Fee | (Free Forever) | • - /user/month ( - /yr) |
| Employee Surveillance | Zero Spying, Zero Screen Capture | •Random webcam snaps & keystrokes |
| Data Ownership | Local SQLite DB on Your Computer | •Stored on vendor servers / access revoked if unpaid |
| Timesheet Export Formats | Unlimited CSV, Excel & PDF Export | •Advanced reporting locked to paid tiers |
| Client & Project Limits | Unlimited Clients, Projects & Tasks | •Capped client limits on free plans |
Download Tuttle-Setup.exe (v4.4.0 official release), install in 1 click, and start tracking project tasks and client rates offline.
Created by freelancers for freelancers who want to track their earnings without employer surveillance software.
Complements DIGI BIZ OS CRM Accounts & Invoicing ledger for end-to-end client billing automation.
System Requirements & Technical Specs
Supported OS
Windows 10/11 (64-bit), macOS, Linux
Processor (CPU)
Any modern dual-core processor
System RAM
4 GB RAM
GPU & Acceleration
Not required
Storage Footprint
250 MB free disk space
Runtime / Setup
Local encrypted SQLite database
Verified Open-Source Trust & Provenance
Every software package in the Digi Biz OS hub is independently audited, virus-scanned, and transparently mapped to its official source repository.
GPL-3.0
Open-source GPL-3.0 license ensuring software freedom and privacy. No trial periods, no locked features, and no subscription traps.
Official Repository
Inspect raw source code, developer commit histories, and issue trackers directly on GitHub.
Zero Malware / Spyware
All binaries and scripts are verified against virus databases. Clean SHA-256 hash verified.
Curated by Digiformation
Curated and packaged by Digiformation Ltd from tuttle-dev repository. Tested for frictionless desktop installation on Windows 10/11.
Common Questions About Tuttle
Concise, factual answers regarding capabilities, licensing, offline reliability, and hardware compatibility.
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Turn Tracked Hours Into Automated Invoices & Client Payments
Tuttle records your hours. DIGI BIZ OS automatically turns those hours into branded client invoices, tracks payment status, and sends automated reminder notices via email and WhatsApp.
- 1-click conversion from logged timesheet hours to professional PDF invoices
- Automated client payment reminders via WhatsApp and email integrations
- Comprehensive project profitability dashboards and expense tracking
- Single dashboard unifying time tracking, CRM, and financial reporting
Get Tuttle Free, Then Connect to DIGI BIZ OS
Enjoy full privacy, zero recurring subscriptions, and perpetual open-source freedom on your hardware.