AtCoder Calendar

Make it easy to add AtCoder contests to your Google Calendar.

As of June 2026, AtCoder Calendar has 327 users and a 5.00/5 rating from 4 reviews in the Workflow & Planning category.

penicillin0 Workflow & Planning★ Featured

Chrome Web Store ↗.crx

Users+12.0%

327

327

Rating0%

5.00

4 reviews

Reviews0%

4

Version

1.1.4

Manifest V3

History

3 snapshots

Tracking since Apr 1, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 1, 2026	292	5.00	4	1.1.4
May 3, 2026	309	5.00	4	1.1.4
Jun 2, 2026	330	5.00	4	1.1.4
Now	327	5.00	4	1.1.4

Permissions & access

Permissions: None declared
Host access: None declared

Screenshots

AtCoder Calendar screenshot 1

AtCoder Calendar screenshot 2

About

Generate a schedule link for Google Calendar on the AtCoder contest site.
It becomes easy to add to your calendar for each contest.


* This is an unofficial extension, so use at your own risk.

If you have any bugs or requests for additional features, please send them to
https://github.com/penicillin0/AtCoder-Google-Calender/issues

Technical

Version: 1.1.4
Manifest: V3
Size: 18.2KiB
Min Chrome: 88
Languages: 2
Featured: Yes

Metadata

ID: dokfhaljgioiaeappgnmibgoipegbldf
Developer ID: u882fdbbd7cc03668943cf6c801f85233
Developer Email: [email protected]
Created: Oct 5, 2019
Last Updated (Store): Jun 18, 2023
Last Scraped: Jun 2, 2026
Website: —
Support URL: —
Privacy Policy: —

Similar extensions

Alternatives to AtCoder Calendar, ranked by description similarity.

Make schedule urls from Google Calendar

GDC Calendar Tool

Chrome Extension for adding GDC sessions to your Google Calendar in one click!

Scheduling Calendar

This Scheduling Calendar: Manage events, calendar reminders & sync calendars. Join video meetings in a shared calendar app.

ChatGPT for Google Calendar

This is a Chrome extension that simplifies event scheduling using natural language input right from your browser.

Make calendaring better

Sets info for your agenda

Add new events to Google Calendar from every websites you visit.

Meetng - Event scheduler for your calendar

Extension to manage calendar events and invites right from your GMail

Data sourced from the Chrome Web Store · last verified Jun 2, 2026.