Log in
Preview of Gradescope to Cal

Gradescope to Cal by Gradescope to Cal

Automatically sync Gradescope assignments to Google Calendar. Privacy-first: all processing happens locally. Perfect for students managing multiple course deadlines. Built by a UC Berkeley EECS student.

0 (0 reviews)
2 Users
Download Firefox and get the extension
Download file
Screenshots
Extract all your assignments with one click from your Gradescope dashboard.The extension will automatically sync to your calendar.Clicking on the events in your calendar to go straight to the submission page.Make the events yours with color and reminders customization through the options page.
About this extension
Stop forgetting Gradescope deadlines. Sync them to Google Calendar automatically.
Built by a UC Berkeley EECS student who kept missing deadlines across 6 different courses.
โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”
HOW IT WORKS
  1. Visit your Gradescope dashboard - auto-extract detects assignments instantly
  2. Connect Google Calendar (one-time, 30 seconds)
  3. All assignments sync immediately (no waiting for next day)
  4. New assignments auto-sync every 24 hours + smart sync triggers on new detections

No manual work. No forgotten deadlines. Just check your calendar like normal.
โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”
INTELLIGENT SYNC SYSTEM
โœ“ First-time sync: Instant calendar population when you connect (no 24-hour wait)
โœ“ Smart sync: Detects new assignments and syncs immediately (60-min cooldown)
โœ“ 24-hour auto-sync: Background sync runs daily to catch any missed assignments
โœ“ Manual sync: Trigger sync anytime from extension popup
โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”
FULL CUSTOMIZATION
โœ“ 11 calendar colors - color-code by class or priority
โœ“ Flexible reminders - none, 1 day, 1 day + 1 hour, or custom (up to 3)
โœ“ Display timing - show at exact deadline time or as all-day events
โœ“ iCal export - one-click .ics file for Outlook, Apple Calendar, or any calendar app
Every event includes direct Gradescope submission links. Click event โ†’ click link โ†’ submit.
โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”
PRIVACY-FIRST
Everything happens in your browser. No servers. No tracking. No data collection.
The extension only reads from Gradescope and writes to your Google Calendar. That's it.
Open source: github.com/Matut-E/gradescope-to-Cal
โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”
WHO THIS IS FOR
Students (or anyone using Gradescope) who are tired of:

Checking 3+ different course pages for assignment due dates
Missing deadlines because you forgot to check Gradescope
Manually typing deadlines into your calendar every week

If you use Gradescope + Google Calendar (or any calendar app), this saves you hours per semester.
โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”
v1.9.1 โ€ข Currently used by 60+ students โ€ข Free โ€ข MIT licensed
Developer comments
KNOWN COMPATIBILITY ISSUE:
Google OAuth may fail during initial setup if Privacy Badger, ClearURL, or similar privacy extensions are active. You'll see an "Unknown Error" at the final OAuth step.
WORKAROUND:
  1. Temporarily disable privacy extensions
  2. Complete Google Calendar connection (takes 30 seconds)
  3. Re-enable privacy extensions

Once connected, all privacy extensions work normally with Gradescope to Cal.
This is a Google OAuth redirect issue, not a bug in this extension. I'm investigating workarounds for future versions.
Rated 0 by 0 reviewers

Star rating saved

5
0
4
0
3
0
2
0
1
0
No reviews yet
Permissions and data

Required permissions:

  • Access browser tabs
  • Access your data for sites in the gradescope.com domain
  • Access your data for accounts.google.com
  • Access your data for www.googleapis.com
Learn more
More information
Version
1.9.2
Size
204.43 KB
Last updated
4 days ago (Nov 17, 2025)
Related Categories
Version History
Add to collection
Report this add-on