InstaCal icon

InstaCal

by hough.yaelin · Workflow & Planning
Manifest V3 Free
View in Chrome Web Store Data as of 17 Oct 2026

Add events to Google Calendar with natural language.

Users
10
+1 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#194K
#162K among extensions
Version
1.0.0
updated 4 Apr 2026

Users

monthly, 6 months
0510Apr 2026Aug 2026Oct 2026
Latest, 17 Oct 2026: 10 usersMove the mouse over the chart for any month

Ratings count

monthly, 6 months
001Apr 2026Aug 2026Oct 2026
Latest, 17 Oct 2026: 1 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About InstaCal

InstaCal lets you create and edit Google Calendar events using plain English. Just type something like “Lunch with Sarah tomorrow at noon” and InstaCal instantly parses it and adds it to your calendar. Designed for speed, InstaCal helps you schedule events, modify them with AI, and share your availability in seconds. CREATE EVENTS WITH NATURAL LANGUAGE Skip the calendar forms and just type what you mean. Examples: • Dentist appointment in 3 days at 2pm • Team lunch Friday at noon at CTB • meet w/ yaelin tmw, 4, olin lib InstaCal’s AI automatically extracts: • Event title • Date and time • Duration • Location • Description • Recurrence • Attendees Choose between: • Auto-Add Mode — events are created instantly • Review Mode — opens the prefilled Google Calendar editor EDIT CALENDAR EVENTS WITH AI InstaCal adds an “Edit with AI” button directly to Google Calendar event pages. Just describe what you want: • “Move this meeting to 3pm” • “Add a Zoom link” • “Change location to Baker Lab” The event updates automatically — no manual editing required. ADD EVENTS FROM ANYWHERE Highlight text on any webpage, right-click, and select “Add to Calendar with InstaCal.” The text is instantly loaded into InstaCal and parsed into an event. Perfect for scheduling from: • emails • documents • event pages • messages INSTANTLY SHARE YOUR AVAILABILITY Select a date range and InstaCal will generate a plain-text list of your free time slots. Your availability is copied to your clipboard so you can paste it into: • emails • Slack messages • meeting requests SMART CONTACTS FOR ATTENDEES Save contacts so InstaCal can automatically resolve attendees when they appear in events. If a new person is mentioned, InstaCal prompts you to add their email and optionally save them for future use. Contacts sync across your devices. CUSTOMIZABLE SCHEDULING PREFERENCES Personalize how events are created with options like: • Auto-add events directly to Calendar • Smart time and duration defaults • Default start time and duration • Default location • Convert tasks into all-day events • Automatically notify attendees • Define working hours for availability sharing BUILT FOR SPEED InstaCal integrates directly with Google Calendar to make scheduling fast, simple, and frictionless. Just type and schedule.

Growth

WindowUsersChangeRatingsRating
7 days−1−9.1%00.00
30 days+1+11.1%00.00
6 months+6+150.0%+1+5.00

Version history

1 versions recorded
1.0.04 Apr 2026

Details

Category
Workflow & Planning
First seen
4 Apr 2026
Size
318 KB
Languages
en-US
Pricing
Free
Privacy policy
instacal-app.web.app
Extension ID
ipebfgnhngaeceabemomheiamjcnklbp

Permissions and risk

Elevated riskimpact 4, likelihood 2
Permissions
storageidentitytabscontextMenusscripting
Site access
https://calendar.google.com/*https://www.googleapis.com/*https://us-central1-instacal-app.cloudfunctions.net/*https://instacal-app.firebaseapp.com/*https://*.firebaseapp.com/*https://identitytoolkit.googleapis.com/*https://securetoken.googleapis.com/*https://www.gstatic.com/*https://apis.google.com/*

Alternatives to InstaCal

Extensions that rank for the same store searches or share the Workflow & Planning category, ordered by users