Changelog

What's new in Growwly

Every feature, improvement and fix we've shipped in the Extension, API and the Website.

October 2026 2 releases

v0.4.3

Brands in Channel Insights, and channel audits in about 3 minutes

  • NewBrands in Channel Insights. See the sponsors and affiliate links a channel's video descriptions mention, with their logos, over the last 30 days, 6 months, 12 months or all time. Finding brands is free and tells you how many there are. Seeing the list costs 50 credits once per channel, and later refreshes are included.
  • NewThis changelog, linked from the version badge in the header and from the footer of every page.
  • ImprovedChannel audits now run on Growwly's servers using YouTube's official API. They take about 3 minutes, you no longer need to keep the tab open, and they work with Capture turned off. The 150 credits are taken when you start and refunded if the audit fails.
  • ImprovedThumbnail Creator runs on credits for everyone, so the Free plan can generate thumbnails too.
  • ImprovedThe button next to Sort by in a video's comments says View comment summary when you already have one, instead of offering it again. Closing the summary while it is being written no longer stops it: a small notice shows its progress.
  • ImprovedWhile your own channel is being re-audited, or if a re-audit fails, Read last report opens the previous one.
  • ImprovedEmojis have their own panel in the thumbnail editor, with its own search, and the Stickers and Shapes panels are tidier.
  • ImprovedMy Library shows every thumbnail at the same size, with vertical designs cropped to fit, so the grid lines up.
  • ImprovedWith more than one connected channel, Feed Preview's channel picker shows each channel's picture and name.
  • ImprovedLoading lines show a spinner, and Settings shows placeholders while your plan and credits load.
  • ImprovedOlder YouTube Playbooks are refreshed automatically.
  • FixedSummarizing comments failed on every try. It works again, and the failed runs were refunded.
  • FixedChannels with a number in their handle could show that number as their subscriber count, and newer counts were sometimes replaced by older ones.
  • FixedFeed Preview always used your first channel, whichever one you picked.
  • FixedThe Open Blank Canvas menu in My Library was hidden behind the toolbar.
  • FixedThe editor's Background bar moved off the canvas after you checked the thumbnail at a smaller size.
  • FixedFewer playbooks and channel audits fail partway through.
  • FixedContact details display properly on the Privacy Policy, Terms of Service and Refund Policy pages.
v0.4.2

Thumbnail Creator is back, and six new tools on YouTube

  • NewThumbnail Creator is back in the Tools shelf, with My Thumbnails, Branding and Personas pages and a blank canvas to start from. It is in English only for now.
  • NewAn Edit Frame button on the YouTube player opens the current frame of the video in the Growwly editor.
  • NewThe editor returns with everything built while it was away: select several layers at once, more gradients and fonts, flags, stickers, a thumbnail score, a preview of your thumbnail among the real cards on the page, and a light and dark theme.
  • NewSummarize comments on any video: Growwly reads the top 100 comments and sums them up for 10 credits. Your summary is saved, so opening it again is free.
  • NewDownload any video's thumbnail in every size from the watch page.
  • NewCopy or download a video's transcript.
  • NewA video's tags now show under its description on the watch page.
  • NewOutlier pills on video cards, such as 4.2x, show how a video is doing against that channel's usual views. They appear on Home, search, the watch sidebar, channel pages and Shorts.
  • NewFeed Preview in the Tools shelf puts your thumbnail, title and channel into a real card on YouTube's Home, search results and watch sidebar, so you can see it before you publish. Nothing is stored or sent.
  • NewChat answers are richer, with clear formatting, highlighted key points, and charts for breakout videos, revenue ranges, upload days, growth and how a channel compares with its niche.
  • ImprovedAdding a persona costs 20 credits, and cutting a subject out of an image no longer needs Pro.
  • ImprovedThe thumbnail editor has been restyled to match the new extension design.
  • ImprovedChannel hover cards open faster, scroll with the page, and have a button that opens full Channel Insights.
  • ImprovedNew icons for the Strategy and Channel chat topics.
  • FixedLong chat answers no longer stop partway through.
  • FixedTooltips and buttons sit in the right place in right-to-left languages such as Arabic.
  • FixedMany smaller reliability fixes across the extension.

September 2026 4 releases

v0.4.1

A redesigned extension and dark mode on growwly.co

  • NewHover a channel's name on any video card to see a compact card with its key Growwly numbers.
  • NewDark mode on growwly.co, YouTube Playbooks and YouTube Stats. It follows your system setting, and the moon button in the header switches it.
  • ImprovedThe toolbar popup is redesigned around your credits, with your balance, a meter and the refill date, and the page's audit and revenue estimate in one card.
  • ImprovedThe Growwly menu on YouTube shows what each action costs, and Tools has its own labelled button next to Growwly in YouTube's top bar.
  • ImprovedChannel Insights is redesigned, with rank and percentile chips, four headline numbers with sparklines and 7-day changes, one chart that switches between subscribers and views, and bars comparing the channel with its peers.
  • ImprovedSettings and Your channels share one sidebar. The Plan page shows Free and Pro side by side, with a monthly and yearly switch.
  • ImprovedA new typeface and one consistent light and dark look across every part of the extension.
  • ImprovedThe popup shows a loading placeholder instead of a blank panel while it fetches your account.
  • FixedSuggested follow-up questions in chat show their text instead of internal labels.
v0.4.0
Major release

Script Writer, 11 languages and free daily credits

Growwly now writes video scripts in a creator's voice, speaks 11 languages, and gives every account free credits each day it opens YouTube.

  • NewScript Writer in the Tools shelf. Describe your video, pick a concept, and write it in a channel's voice or match another video's tone, for long-form or Shorts. You get title options, can refine any part of the script, and can copy or download it as Markdown or plain text.
  • NewMy Scripts keeps every script you write, with search, a format filter and sorting.
  • NewThe Tools shelf is back in the extension, starting with Script Writer.
  • NewThe extension speaks 11 languages: English, Español, Português (Brasil), हिन्दी, Bahasa Indonesia, Deutsch, Français, 日本語, Русский, العربية and Türkçe. It follows your browser or YouTube's language, or you can pick one in Settings.
  • NewFree daily credits. Open YouTube each day to get 5 free credits, on both Free and Pro.
  • ImprovedError messages are translated into your language too.
  • ImprovedCharts in Channel Insights and YouTube Stats are now line charts, with dashed gaps where data is missing, and are hidden when there is too little data to draw.
  • ImprovedNew YouTube Playbooks are published automatically every day.
  • ImprovedThe Channels screen shows a loading indicator, and your own channel's audit is easier to read.
  • FixedChannel Insights tooltips show in the right place.
  • FixedSome channels showed missing or out-of-date numbers.
  • FixedSearching YouTube Playbooks no longer returns unrelated results.
  • FixedMessages about credits show the right amounts.
v0.3.3

One credit balance for everything

  • NewCredits. One monthly balance replaces the separate limits each feature had, and every action shows what it costs before you run it.
  • NewReport a bug and Leave a review, straight from the popup, plus a bug report page on growwly.co.
  • NewA short survey when you uninstall, so we can learn what went wrong.
  • ImprovedPricing and Billing pages explain both plans in credits.
  • ImprovedPro credits now renew on your subscription date instead of the 1st of the month.
  • ImprovedYour own channel's audit shows its credit cost and the videos' thumbnails, and opens even when a channel has very little data.
  • ImprovedOn a channel Growwly doesn't have data for yet, the page now says so instead of showing nothing.
  • ImprovedDuring planned maintenance, the popup, menu, chat, Channel Insights, Settings and Channels say so clearly instead of failing.
  • ImprovedThe blog has pages, so older posts are easy to find.
  • ImprovedOur Privacy Policy and Terms of Service now cover YouTube API Services properly.
  • FixedRevenue estimates now match between the channel page, video pages and the website.
  • FixedGrowwly no longer shows errors on YouTube tabs that were open while the extension updated.
  • RemovedThe Tools shelf and Thumbnail Creator are out of the extension for now while we rework them.
  • RemovedThe free Thumbnail Creator on growwly.co, ahead of its move into the extension.
v0.3.2

Thumbnail Creator arrives in the extension

  • NewThumbnail Creator in the Tools shelf. Generate two thumbnails from your video's title, borrow the style of a channel you admire, or put yourself in the frame from a photo, for landscape videos or Shorts.
  • NewThe Growwly editor for finishing a thumbnail: text with outlines, gradients and effects, images and emoji, cutting a subject out of its background, locked layers, undo, and a See it small preview at feed size. Open it from a generated thumbnail or from a frame of the video.
  • ImprovedThe extension has a cleaner look, and the Tools panel can be collapsed.
  • ImprovedThe Free plan no longer has a monthly chat limit, only a daily one.
  • FixedSome YouTube Stats pages failed to load.

August 2026 6 releases

v0.3.0
Major release

Growwly Pro and private audits of your own channel

Connect the YouTube channels you own for a private audit built on your real Studio analytics, and upgrade to Pro for higher limits.

  • NewYour channels. Connect the YouTube channels you own and run a free, private audit built on your own analytics: views, watch time, traffic sources and revenue.
  • NewGrowwly Pro, a paid plan with higher limits, with new Pricing and Billing pages and a Refund Policy.
  • NewA Tools shelf in the extension, with Thumbnail Creator listed as coming soon.
  • ImprovedYouTube Playbooks load much faster.
  • ImprovedSubscriber pills no longer appear on a channel's own page, where the count is already shown.
  • FixedChannel audits that failed partway now retry properly.
  • FixedReliability and security fixes across the extension and our servers.
v0.2.0
Major release

Channel Insights and subscriber counts on every video card

Growwly now shows the numbers behind any channel, right where you watch.

  • NewChannel Insights (beta). Open it from a channel or video to see subscribers and views gained over 7 and 28 days, growth charts, like and comment rates, upload frequency, video length, Shorts share, estimated ad revenue, category, country, the channel's tags and similar channels.
  • NewSubscriber counts on video cards across YouTube's Home page, search results and the watch sidebar.
  • ImprovedChat shows how many chats you have left.
  • ImprovedPlaybooks are only made for channels with at least 20 videos, so small channels no longer get a thin playbook.
v0.1.4

YouTube Stats launches, and free tool results get their own pages

  • NewYouTube Stats: subscribers, views and estimated earnings for any public channel, plus rankings of the top YouTube channels.
  • NewFree tool results are kept for good, so a link to a Channel Roast, Channel Audit or Revenue Estimate keeps working and refreshes itself when it gets old. Competitor Gap Reports get their own shareable link too.
  • NewA Support page with how to reach us.
  • NewAdd to Chrome and Add to Edge buttons across the site.
  • NewSearch on the Explore page of YouTube Playbooks.
  • ImprovedRevenue estimates now account for the country a channel is based in.
  • ImprovedThe free Thumbnail Creator has a new toolbar, fonts, effects and shapes panels, and sharper full-HD images.
  • ImprovedPlaybooks now cover many more channels, not just a hand-picked list.
  • ImprovedA channel audit in the extension picks up where it left off if it is interrupted.
  • ImprovedA new homepage and updated header and footer navigation.
  • FixedUpload schedules in playbooks are calculated correctly, and uploads per week no longer show long decimals.
  • FixedShare images no longer have overlapping text or missing channel pictures.
v0.1.3

Clearer sign-in wording

  • ImprovedThe sign-in screen is clearer about what Growwly asks Google for.
v0.1.2

Log out from Settings

  • NewLog out of Growwly from the extension's Settings page.
  • ImprovedWhen capture is turned off in Settings, chat goes quiet too and tells you how to turn it back on.
v0.1.1

The Growwly extension brings playbooks, revenue and chat to YouTube

  • NewThe Growwly browser extension. Sign in with Google and it works on the YouTube pages you already open.
  • NewA Growwly button in YouTube's top bar, with a menu of everything Growwly can do on the page you're on.
  • NewRun a channel audit from the extension. Growwly reads the channel's videos and comments at a gentle pace, about 9 minutes, and turns them into a playbook. You can pause, resume or cancel.
  • NewRead a channel's playbook right on YouTube, from the channel page or any of its videos.
  • NewRevenue estimates on channel pages and on videos, including Shorts.
  • NewAsk Growwly about the channel or video you're watching, with suggested questions to start from.
  • NewA Settings page, with a switch to turn Growwly off for this browser.
  • NewThumbnail Downloader on growwly.co: download any video's thumbnail in every size.
  • NewA free Thumbnail Creator on growwly.co.
  • NewPrivacy Policy and Terms of Service pages.
  • ImprovedA new design across the whole site.
  • ImprovedThe Explore page of YouTube Playbooks has pages and clickable niches, and every playbook uses the same categories.
  • ImprovedMore creators and niches in YouTube Playbooks.
  • ImprovedRevenue estimates now agree across the free tools, playbooks and the extension.
  • ImprovedEvery free tool has its own share image.
  • ImprovedChats that fail no longer count against your limit.
  • FixedThe email form on playbook pages works again.

July 2026 1 release

v0.1.0

Growwly goes live with YouTube Playbooks and free creator tools

  • NewYouTube Playbooks: reverse-engineered growth playbooks for the channels winning each niche, with their title formulas, hooks, thumbnail patterns and style recipe, upload schedule, video length, breakout videos, keywords and engagement.
  • NewPlaybook numbers are refreshed over time, so you can see how a channel's subscribers, views and upload pace have moved.
  • NewAn Explore page to browse every playbook.
  • NewRoast My Channel: AI grades your thumbnails, titles and upload habits.
  • NewRevenue Estimator: estimate any channel's monthly ad revenue from public data.
  • NewCompetitor Gap Report: compare your channel with a competitor and see where they're winning.
  • NewChannel Audit: an instant audit of any channel, with a list of recently audited channels.
  • NewThe Growwly blog.
  • NewRequest an invite to Growwly from the homepage.