Rob's Gmail AutoCaps

Automatically capitalises sentences, 'I', acronyms, days, months, titles, and proper nouns in Gmail

As of June 2026, Rob's Gmail AutoCaps has 38 users in the Productivity category.

Usersup 111.1 percent+111.1%
38
38
Ratingno change0%
— reviews
Reviewsno change0%
Version
1.2.3
Manifest V3

History

8 snapshots

Tracking since Apr 1, 2026.

39.6827.515.32Apr 1, 2026Jun 2, 2026
View as table
DateUsersRatingReviewsVersion
Apr 1, 2026181.2.3
Apr 17, 2026171.2.3
Apr 22, 2026191.2.3
Apr 27, 2026241.2.3
May 7, 2026271.2.3
May 14, 2026321.2.3
May 23, 2026311.2.3
Jun 2, 2026361.2.3
Now381.2.3

Permissions & access

Permissions
storage
Host access
None declared

Screenshots

Rob's Gmail AutoCaps screenshot 1Rob's Gmail AutoCaps screenshot 2

About

# Rob's Gmail AutoCaps - Professional Email Formatting, Effortlessly

Never worry about capitalisation or apostrophes in Gmail again. Rob's Gmail AutoCaps automatically formats your emails as you type, handling capitalisation, punctuation, and contractions so you can focus entirely on what you're writing.

## What It Does

This extension works invisibly in the background while you compose Gmail messages, automatically correcting:

**Contractions** - Type without apostrophes and they're added instantly:
- `didnt` → `didn't`
- `youre` → `you're`  
- `cant` → `can't`
- `ill` → `I'll`
- `theyve` → `they've`
- 60+ common contractions included, plus add your own custom ones

**Sentences** - First letter capitalised after full stops, question marks, exclamation marks, and at the start of new lines

**The Pronoun "I"** - Always capitalised (toggleable if you prefer lowercase in informal contexts)

**Acronyms** - Automatically capitalised: CEO, NHS, UK, USA, GDPR, ASAP, and 30+ more. Add unlimited custom acronyms for your industry.

**Proper Nouns** - 200+ UK names and places included: London, Manchester, Glasgow, Tesco, NHS, BBC, Oliver, Charlotte, Smith, etc. Add your own colleagues, clients, and company names.

**Titles** - Mr, Mrs, Dr, Prof, Captain, and 25+ other honorifics automatically capitalised

**Days & Months** - Monday through Sunday, January through December

## Why You Need It

**Save Time**: Stop manually fixing capitalisation mistakes after you've already sent the email. The extension catches everything in real-time as you type.

**Look Professional**: Every email looks polished and carefully written, even when you're typing quickly or multitasking.

**Reduce Cognitive Load**: Don't think about formatting rules while composing. Focus on your message; let the extension handle the mechanics.

**Especially Useful For:**
- Fast typers who prioritise speed over perfect formatting
- People with dyslexia or other learning differences
- Non-native English speakers learning capitalisation rules
- Anyone writing 20+ emails daily
- Professionals who need consistently polished communication

## Smart Features

**Context-Aware** - Won't capitalise inside URLs, email addresses, or quoted text. Understands mid-sentence abbreviations like "i.e." and "e.g."

**Undo Function** - Press Ctrl+Shift+Z (Cmd+Shift+Z on Mac) or click the undo button to reverse any auto-correction. Works for the last 10 changes.

**Usage Statistics** - See which capitalisations you use most frequently. Track your top 20 acronyms, proper nouns, and contractions.

**Fully Customisable**:
- Toggle entire extension on/off
- Toggle "I" capitalisation separately
- Add unlimited custom acronyms (company-specific terms, industry jargon)
- Add unlimited custom proper nouns (colleague names, client companies, local places)
- Add unlimited custom contractions (informal phrases, specialised terms)
- All settings sync across your Chrome browsers

**Privacy-First** - Extension only runs on mail.google.com. All processing happens locally in your browser. Your emails never leave your computer. No data is collected or transmitted to external servers.

## UK-Focused But Universal

While the extension includes 200+ UK proper nouns (cities like Glasgow and Birmingham, brands like Tesco and Boots, common UK names), it works perfectly for anyone writing in English. The core features—sentence capitalisation, contractions, "I", acronyms, days, months—are universal. Customise it with your own proper nouns regardless of location.

## How It Works

The extension uses intelligent word-boundary detection. It waits until you finish typing a word (by pressing space, punctuation, or enter), then checks if that word needs formatting. This approach is fast, accurate, and never interrupts your typing flow.

**Example**: Type "hi robert i didnt see you in glasgow on monday "

The extension processes after each space:
- "hi" → "Hi" (sentence start)
- "robert" → "Robert" (proper noun)
- "i" → "I" (pronoun)
- "didnt" → "didn't" (contraction)
- "see" → "see" (no change)
- "you" → "you" (no change)
- "in" → "in" (no change)
- "glasgow" → "Glasgow" (proper noun)
- "on" → "on" (no change)
- "monday" → "Monday" (day of week)

Final result: "Hi Robert I didn't see you in Glasgow on Monday "

All automatic. All instant. Zero effort from you.

## Installation & Setup

1. Install the extension
2. Open Gmail and start composing
3. Type naturally—the extension handles the rest

**Optional**: Open the extension settings (click the icon) to:
- Add custom acronyms, proper nouns, or contractions
- Toggle "I" capitalisation on/off
- View usage statistics
- Browse default lists

## What's Included

**Default Acronyms (30+)**: UK, USA, EU, NATO, NHS, CEO, CFO, CTO, HR, PR, GDPR, RSVP, ASAP, FYI, FAQ, PDF, BOP, ITC, RNIB, BSL, and theatre/arts terms

**Default Titles (28)**: Mr, Mrs, Ms, Miss, Dr, Prof, Professor, Rev, Fr, Sr, Sir, Dame, Lord, Lady, Capt, Captain, Lt, Gen, Col, Maj, Sgt, Hon, Esq, Mx

**Default Proper Nouns (200+)**:
- UK Cities: London, Manchester, Birmingham, Liverpool, Glasgow, Edinburgh, Cardiff, Bristol, Oxford, Cambridge...
- UK Regions: England, Scotland, Wales, Cornwall, Yorkshire, Kent, Hampshire...
- UK Brands: Tesco, Sainsbury's, Asda, Marks & Spencer, Boots, Greggs, Costa...
- UK Banks: Barclays, Lloyds, HSBC, NatWest, Santander, Monzo...
- Common UK Names: Oliver, Amelia, Mohammed, Charlotte, Smith, Jones, Patel...

**Default Contractions (60+)**: don't, won't, can't, I'm, you're, he's, she's, it's, we're, they're, I'll, you'll, we'll, they'll, I've, you've, we've, they've, I'd, you'd, he'd, she'd, we'd, they'd, didn't, doesn't, isn't, aren't, wasn't, weren't, hasn't, haven't, hadn't, wouldn't, shouldn't, couldn't, what's, where's, who's, how's, there's, here's, that's, let's, would've, could've, should've, and more

## Perfect For

- Business professionals writing client emails, proposals, reports
- Recruiters and HR teams constantly writing names
- Teachers and academics maintaining professional standards
- Anyone who types quickly and wants formatting to keep pace
- People with dyslexia who find capitalisation rules challenging
- English learners wanting real-time formatting guidance
- Anyone who cares about professional written communication

## Performance & Compatibility

**Lightweight**: Minimal performance impact. Only processes when you type word boundaries (space, punctuation), not every keystroke.

**Gmail-Only**: Extension only activates on mail.google.com for security and privacy.

**Chrome Sync**: Settings sync across all your Chrome browsers when signed into Chrome.

## Support & Feedback

Having issues or want to suggest a feature? Use the feedback button in Chrome's extension menu or leave a review. We read every comment and continuously improve based on user feedback.

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**Bottom Line**: Install Rob's Gmail AutoCaps once, configure it to your preferences (or use the excellent defaults), and never manually fix capitalisation or apostrophes in Gmail again. Your emails will be consistently professional, perfectly formatted, automatically.

Technical

Version
1.2.3
Manifest
V3
Size
26.95KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
komohkopbenjkojkmdafgjficonehdhc
Developer ID
ub55d654dac6654fb26e18f299a2ac6d2
Developer Email
[email protected]
Created
Jan 22, 2026
Last Updated (Store)
Jan 25, 2026
Last Scraped
Jun 2, 2026
Website
Support URL
Privacy Policy

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