PRIVATE BILLABLE HOURS & PRODUCTIVITY APP • 6,800+ GITHUB STARS • GPL-3.0

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.

Direct Source & Release (.ZIP)•Windows 10/11 (64-bit), macOS, Linux•GPL-3.0
6.8k ★
Tuttle Time Tracker Studio interface preview
100% OPEN SOURCE
100% Local SQLiteZero Cloud TrackingTimesheet Export
💰 Save $120 / year vs Toggl Track
Zero Malware • 100% Free Open Source

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.

Market Worth & SaaS Replacement Appraisal

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.

Your Annual Savings - / yearper seat / forever free
Commercial Market Cost
- / yr

Paid licenses & subscriptions in the commercial market

Toggl Track Pro (/yr)Clockify Pro (/yr)Harvest (/yr)
Your Cost Here
Free Forever (GPL-3.0)

Permissive license, unlimited local usage on your PC

GNU GPL-3.0 Open Source
Data Ownership
100% Local Privacy

No cloud telemetry, no account locking, zero vendor spying

Runs natively on Windows 10/11
Key CapabilityTuttle 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
How You Can Use This Tool Right Now (The Free Pathway)
Step 1: Download & Run Free

Download Tuttle-Setup.exe (v4.4.0 official release), install in 1 click, and start tracking project tasks and client rates offline.

Step 2: Why It Is 100% Free

Created by freelancers for freelancers who want to track their earnings without employer surveillance software.

Step 3: DIGI BIZ OS Integration

Complements DIGI BIZ OS CRM Accounts & Invoicing ledger for end-to-end client billing automation.

Ready to replace expensive SaaS? Download the free installer directly:
Hardware & Software Compatibility

System Requirements & Technical Specs

Execution Mode: 100% Local (Offline)

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

Transparency & Licensing

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.

Verified Free

GPL-3.0

Open-source GPL-3.0 license ensuring software freedom and privacy. No trial periods, no locked features, and no subscription traps.

Commercial Permitted
6.8k ★

Official Repository

Inspect raw source code, developer commit histories, and issue trackers directly on GitHub.

Clean Scan

Zero Malware / Spyware

All binaries and scripts are verified against virus databases. Clean SHA-256 hash verified.

100% Local (Offline)
UK Verified

Curated by Digiformation

Curated and packaged by Digiformation Ltd from tuttle-dev repository. Tested for frictionless desktop installation on Windows 10/11.

Co. Reg #16994903
Frequently Asked Questions

Common Questions About Tuttle

Concise, factual answers regarding capabilities, licensing, offline reliability, and hardware compatibility.

Tuttle is a privacy-first desktop application that tracks your work hours, categorizes tasks by client and project, and generates clean timesheet reports for billing.
Next Step • Business Operating System

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.