Description Modifier —Bulk YouTube description editor.
When a sponsor swaps, an affiliate program ends, or a new CTA goes live — roll the change across your entire catalog. Line-by-line preview before anything ships. Full undo on the last 10 runs.
Chrome today. Edge, Brave, Arc, and Opera coming soon.
Your back catalog is a revenue engine. Treat it like one.
Every video you've ever published is still earning — or quietly leaking money through dead links, expired codes, and stale CTAs. Description Modifier turns your library into something you actually operate.
Stop sending viewers to 404s.
Sweep expired affiliate URLs, shut-down sponsor pages, and broken merch links out of every description in one pass.
Black Friday across 300 videos by lunch.
Push a seasonal banner, a discount code, or a limited-time offer to your whole catalog — then pull it down the moment it ends.
A new course link in every relevant video.
Roll out a course launch, newsletter signup, or product drop everywhere it belongs — with a line-by-line preview before anything ships.
Built for the people who actually run the channel.
Solo creators
Keep your back catalog earning. Refresh dead affiliate links, retire old sponsor codes, push new merch — without spending a Saturday in Studio.
Channel managers
Roll out a sponsor change request the same day it lands in your inbox. No tab-by-tab clicking.
Agencies & networks
Operate across multiple channels with one workflow. Show clients a safety preview before pushing.
Four operations. Every video in your library. One safety net.
Swap sponsors & affiliates
Replace old codes, handles, or links across every video at once.
Retire dead promos
Delete shut-down links — leftover blank lines collapse automatically.
Roll out new CTAs
Add a newsletter signup, merch drop, or disclaimer to top or bottom.
Safety preview & undo
Line-by-line diff for every match. Type CONFIRM before shipping. Undo last 10 runs.
Install
One-click install from the Chrome Web Store
Works in Chrome, Edge, Brave, and other Chromium browsers. Auto-updates. Sign in with Google inside the extension — no setup required.
Add to Chrome — Free