Change Subject Line for Gmail

What it can reach

Specific sites only: 2 match patterns.

• https://mail.google.com/*
• https://change-subject-line-for-gmail.siliconverve.com/*

• Run its own code on the pages it can access scripting
• Schedule work to run later alarms
• Store data in your browser storage

The full permission history for this extension →

The publisher

Emmett Sun publishes 4 listings we track, 487 users between them.

1. Docs to PDF (Bulk Convert for Google Drive) Emmett Sun · Productivity · Workflow · published 2026-05-08 199 users ★ 5.0
2. Bulk Reply for Gmail Emmett Sun · Productivity · Communication · published 2026-05-13 86 users
3. Bulk Print Emails for Gmail Emmett Sun · Productivity · Workflow · published 2026-09-06 2 users

Like this one

Listings the catalog judges closest in what they say they do.

1. Rename Email Subject by cloudHQ Describes nearly the same job, with an established audience 10k users ★ 4.1
2. Gmail Always Show Subject Describes a similar job, smaller audience 467 users ★ 3.3
3. Formatted Email Subject Lines by cloudHQ Describes a similar job, with an established audience 10k users ★ 4.5
4. Professional Email Subject Generator Describes a similar job, smaller audience 4 users
5. Gmail Subject Enforcer Describes a similar job, smaller audience 54 users ★ 5.0

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.