Awesome Toggl
Official client
toggl/toggldesktop: Toggl Desktop app for Windows, Mac and Linux
toggl/toggl-button: Toggl Button extension for Chrome and Firefox
toggl/mobileapp: Toggl's mobile apps
CLI
AuHau/toggl-cli: A simple command-line interface for toggl.com Python
meeDamian/toggl-cli: Manage your Toggl.com time entries from the familiarity of the nearby CLI. JS
sachaos/toggl: Toggl CLI Client Golang
tebeka/toggl: Simple toggl command line client Golang
API wrapper
7eggs/node-toggl-api: Toggl API for Node.js JS
kanet77/togglv8: Ruby wrapper for Toggl API v8 Ruby
atog/toggl: Toggl API wrapper in a Ruby gem Ruby
ixudra/toggl: Custom PHP library to connect with the Toggl API - developed by Ixudra PHP
dougEfresh/gtoggl: Go (golang) client library the toggl API (v8) Golang
Miscellaneous
jason0x43/alfred-toggl: Alfred Workflow for interacting with the Toggl time tracking service
fyyyyy/Toggl-to-Jira-Chrome-Extension: Sync toggl time entries with Jira work log
SkyWriter/toggl: Redmine Toggl Integration Plugin
thinkinglabs/toggl-google-sheet: Import Toggl time entries into a Google Sheet