# Time Tracker - Web Habit Builder

> Time Tracker - Web Habit Builder is an open-source browser extension (MIT license) for Chrome, Firefox and Edge. It records time spent on websites automatically, generates habit reports from that data, and supports daily limits, per-visit limits, blocked hours and focus sessions for any URL pattern. All data is stored locally in the browser; the extension does not require an account and does not send data to its developers. It holds a 4.9-star rating on the Chrome Web Store and is listed as a Top Rated extension on Firefox Add-ons.

## Quick Links

- [Home](https://time-tracker-4-browser.app/en/): Official homepage with the feature overview and user reviews.
- [Install](https://time-tracker-4-browser.app/en/install): Store links for the Chrome Web Store, Firefox Add-ons and Edge Add-ons.
- [Get Started](https://time-tracker-4-browser.app/en/guide/start): Setup guide: install the extension, pin the icon, and read the tracked data.
- [FAQ](https://time-tracker-4-browser.app/en/faq): Answers on data privacy, browser support, cross-device sync, and data migration from other trackers.
- [Privacy Policy](https://time-tracker-4-browser.app/en/privacy): What data is collected, where it is stored, and why nothing leaves the browser.

## Guide

- [How Tracking Works](https://time-tracker-4-browser.app/en/guide/basic/stat): Active tab detection and domain merging rules, with statistics grouped by domain and date.
- [Habit Reports](https://time-tracker-4-browser.app/en/guide/basic/analysis): Pie charts, period comparison, and per-site history built on the tracked data.
- [Site Limits and Blocking](https://time-tracker-4-browser.app/en/guide/basic/limit): Daily limits, per-visit limits, forbidden hours and focus sessions, with optional verification to unlock.
- [Data Sync](https://time-tracker-4-browser.app/en/guide/data): Export to JSON or CSV, and backup to your own GitHub Gist, Obsidian (via the Local REST API plugin) or a self-hosted WebDAV server. Backups run on demand or on a schedule you set.

## Blog & Alternative Comparisons

- [The Best 6 Time Tracking Chrome Extensions in 2026](https://time-tracker-4-browser.app/en/blog/best-time-tracking-chrome-extensions-2026): Comparison of six time tracking extensions covering tracking scope, habit reports, site limiting, data storage and pricing.
- [How to Track Time Spent on Websites in Chrome, Edge and Firefox](https://time-tracker-4-browser.app/en/blog/how-to-track-time-spent-on-websites): Step-by-step guide to automatic, local-only website time tracking. Also available in [German](https://time-tracker-4-browser.app/de/blog/how-to-track-time-spent-on-websites) and [Russian](https://time-tracker-4-browser.app/ru/blog/how-to-track-time-spent-on-websites).
- [Does Chrome Have a Built-in Time Tracker?](https://time-tracker-4-browser.app/en/blog/does-chrome-have-built-in-time-tracker): Why Chrome has no per-website duration reporting, and which extensions fill that gap.
- [How to Limit Time on YouTube and Other Websites in Chrome](https://time-tracker-4-browser.app/en/blog/limit-time-on-youtube-websites): Daily limits, per-visit caps, and blocked time periods for any URL pattern.
- [Webtime Tracker Alternatives](https://time-tracker-4-browser.app/en/blog/webtime-tracker-alternatives): Comparison of free and cross-browser trackers, including data migration from Webtime Tracker.
- [Screen Time Tracker Without an Account](https://time-tracker-4-browser.app/en/blog/screen-time-tracker-without-account): Local-only options that do not upload browsing history.

## Localized Versions

- [English](https://time-tracker-4-browser.app/en/): Default language
- [Simplified Chinese (简体中文)](https://time-tracker-4-browser.app/zh_CN/): 核心功能指南、本地隐私架构与番茄钟专注模式说明
- [Traditional Chinese (正體中文)](https://time-tracker-4-browser.app/zh_TW/): 正體中文語系說明頁面
- [German (Deutsch)](https://time-tracker-4-browser.app/de/): Localized guide
- [French (Français)](https://time-tracker-4-browser.app/fr/): Localized guide
- [Spanish (Español)](https://time-tracker-4-browser.app/es/): Localized guide
- [Portuguese (Português)](https://time-tracker-4-browser.app/pt_PT/): Localized guide
- [Japanese (日本語)](https://time-tracker-4-browser.app/ja/): Localized guide
- [Russian (Русский)](https://time-tracker-4-browser.app/ru/): Localized guide

## Source Code & Open Source Community

- [Extension Source Repository](https://github.com/sheepzh/time-tracker-4-browser): MIT-licensed source code of the extension.
- [Documentation Repository](https://github.com/sheepzh/timer-page): Source repository for this VitePress documentation.
- [Issue Tracker](https://github.com/sheepzh/timer/issues): Bug reports, feature requests, and product roadmap discussion.

## Optional

- [Sitemap](https://time-tracker-4-browser.app/sitemap.xml): Machine-readable XML index of all localized guides and content nodes.