Free tools
Tools for marketers, brands and creators.
Free calculators, image tools and generators for pricing, ad spend, social image sizes and product copy.
Calculators
16
Ecommerce Profit Margin Calculator
Calculate gross margin, net margin, profit per unit, and break-even ROAS for any ecommerce product.
Conversion Rate Calculator
See whether your conversion rate is good for your industry, and how many more orders the median and the top quarter would bring.
Engagement Rate Calculator
Calculate an engagement rate for Instagram, TikTok, Facebook or X, graded against the published average for that platform.
TikTok Engagement Rate Calculator
Type a TikTok handle and grade every recent video by views against the average for accounts your size.
Facebook Engagement Rate Calculator
Calculate your Facebook engagement rate by fans and by reach, graded against the published average.
Twitter (X) Engagement Rate Calculator
Calculate your Twitter or X engagement rate by followers and by impressions, graded against the published average.
YouTube Engagement Rate Calculator
Calculate a YouTube engagement rate by views and by subscribers, with the interactions per 1,000 views and the comment share.
Instagram Engagement Rate Calculator
Calculate your Instagram engagement rate by followers and by reach, graded against the published all-industry median.
Image tools
27
Instagram Size Checker
Drop one image in and see what Instagram does to it in every format, with the crop drawn on your photo, then download the fixed file. Nothing is uploaded.
YouTube Thumbnail Size Checker
Drop a thumbnail in, see what YouTube does to it, and resize it to 1280 x 720, 4K or Shorts under the size limit. Nothing is uploaded.
Instagram Story Size Checker
See the 9:16 crop and the safe zones the profile row and reply box cover, drawn on your own story. Nothing is uploaded.
Instagram Reels Safe Zone Checker
Drop a reel, a cover or a Reels ad and see what the caption, the buttons and the top bar cover, drawn from Meta's own figures. Nothing is uploaded.
Facebook Cover Photo Size Checker
Facebook crops covers differently on desktop and mobile. See both crops and the area that survives them. Nothing is uploaded.
LinkedIn Banner Size Checker
See the 4:1 crop, the 15 percent mobile cut and where your profile photo lands on your banner. Nothing is uploaded.
YouTube Banner Size Checker
See the 2560 x 1440 crop and the 1235 x 338 safe area YouTube keeps on every device, drawn on your own banner. Nothing is uploaded.
Instagram Profile Picture Size Checker
Drop your photo in and see what the round crop hides. Instagram publishes no size, so every figure is labelled. Nothing is uploaded.
Generators
22
AI Ad Generator
Paste your store URL and get finished static ads built from your customer reviews and from ads winning in your market.
YouTube Tag Generator
Type a video title and topic and get YouTube tags from specific to broad, counted against the 500 character limit, ready to paste.
YouTube Description Generator
Write a YouTube description from what your video covers: opening lines for above the fold, your chapters and links, and three hashtags.
TikTok Caption Generator
Describe the video and the product and get three TikTok captions with a hook first line, for a post, a Spark Ad or an in-feed ad.
Instagram Bio Generator
Say who the account is for and get 5 Instagram bios, each inside the 150 character limit, with a count and a Copy button.
Facebook Hashtag Generator
Paste a Facebook post and get hashtags in groups, specific first, each one a single word Facebook can link, with one Copy all.
LinkedIn Hashtag Generator
Paste a LinkedIn post and get hashtags for your industry, your role and the topic, each one a single word, with one Copy all.
TikTok Bio Generator
Say what you sell or post and get 5 TikTok bios, each inside the 80 character limit, with a count and a Copy button.
Ad research
8
Facebook Ads Report
Drop your Ads Manager export to see winners, fatiguing ads, budget leaks and what to test next.
Competitor Ad Finder
Enter one brand and open all four public ad libraries at the right place, with what each one will and will not show you.
TikTok Safe Zone Checker
Drop a TikTok ad, image or video, and see what the tabs, buttons and caption cover, drawn on your own frame. Nothing is uploaded.
TikTok Video Downloader
Paste a TikTok video link and save the MP4, without the watermark when TikTok keeps that file. No app, no sign-up.
Pinterest Video Downloader
Paste a pin link and save the video as an MP4 in the largest size Pinterest keeps, idea pins included.
Facebook Ad Downloader
Paste a Meta Ad Library link or ad ID and save the ad's video or pictures, one file per carousel card.
YouTube Transcript Extractor
Paste a YouTube video or Short link and get its transcript with timestamps or as plain text. Copy it, or download TXT or SRT.
TikTok Transcript Generator
Paste a TikTok video link and get what is said, with timestamps or as plain text. Copy it, or download TXT or SRT.
All tools
Ecommerce Profit Margin Calculator
Calculate gross margin, net margin, profit per unit, and break-even ROAS for any ecommerce product.
Conversion Rate Calculator
See whether your conversion rate is good for your industry, and how many more orders the median and the top quarter would bring.
Engagement Rate Calculator
Calculate an engagement rate for Instagram, TikTok, Facebook or X, graded against the published average for that platform.
TikTok Engagement Rate Calculator
Type a TikTok handle and grade every recent video by views against the average for accounts your size.
Facebook Engagement Rate Calculator
Calculate your Facebook engagement rate by fans and by reach, graded against the published average.
Twitter (X) Engagement Rate Calculator
Calculate your Twitter or X engagement rate by followers and by impressions, graded against the published average.
YouTube Engagement Rate Calculator
Calculate a YouTube engagement rate by views and by subscribers, with the interactions per 1,000 views and the comment share.
Instagram Engagement Rate Calculator
Calculate your Instagram engagement rate by followers and by reach, graded against the published all-industry median.
ROAS Calculator
See your ROAS, whether your ads made money, and the target ROAS and ACoS for the profit you want, from spend, revenue and margin.
Break-Even ROAS Calculator
The ROAS at which your ads stop losing money, from your margin or your costs per order, plus your break-even CPA.
Customer Lifetime Value Calculator
Calculate CLV, monthly customer value, and your maximum acquisition cost.
CPM Calculator
Cost per thousand impressions, solved in any direction: fill any two of spend, impressions and CPM and the third is worked out.
CPC Calculator
Cost per click, plus the CTR and CPM the same three numbers already answer.
CTR Calculator
Click-through rate at two decimals, plus impressions per click and your click-to-conversion rate.
CPA Calculator
Cost per acquisition against the break-even CPA your order value and margin allow, so the number comes with a verdict.
CAC Calculator
Customer acquisition cost counting sales spend as well as marketing, plus the LTV to CAC ratio.
Instagram Size Checker
Drop one image in and see what Instagram does to it in every format, with the crop drawn on your photo, then download the fixed file. Nothing is uploaded.
YouTube Thumbnail Size Checker
Drop a thumbnail in, see what YouTube does to it, and resize it to 1280 x 720, 4K or Shorts under the size limit. Nothing is uploaded.
Instagram Story Size Checker
See the 9:16 crop and the safe zones the profile row and reply box cover, drawn on your own story. Nothing is uploaded.
Instagram Reels Safe Zone Checker
Drop a reel, a cover or a Reels ad and see what the caption, the buttons and the top bar cover, drawn from Meta's own figures. Nothing is uploaded.
Facebook Cover Photo Size Checker
Facebook crops covers differently on desktop and mobile. See both crops and the area that survives them. Nothing is uploaded.
LinkedIn Banner Size Checker
See the 4:1 crop, the 15 percent mobile cut and where your profile photo lands on your banner. Nothing is uploaded.
YouTube Banner Size Checker
See the 2560 x 1440 crop and the 1235 x 338 safe area YouTube keeps on every device, drawn on your own banner. Nothing is uploaded.
Instagram Profile Picture Size Checker
Drop your photo in and see what the round crop hides. Instagram publishes no size, so every figure is labelled. Nothing is uploaded.
Pinterest Pin Size Checker
See whether your Pin is the 2:3, 1000 x 1500 Pinterest recommends, and what a taller one risks in the feed. Nothing is uploaded.
Pinterest Banner Size Checker
Check your profile cover against the 800 x 450 minimum and 16:9 shape, with the phone crop and buttons drawn on it. Nothing is uploaded.
Pinterest Profile Picture Size Checker
Drop your photo in and see what Pinterest's round crop hides. Pinterest publishes no size, so every figure is measured. Nothing is uploaded.
YouTube Thumbnail Downloader
Paste a YouTube link and download every thumbnail size YouTube stores, up to 1280 x 720. Nothing is uploaded.
Instagram Profile Picture Downloader
Paste an Instagram username or profile link and download the profile picture in the largest file Instagram keeps, up to 1080 x 1080.
TikTok Profile Picture Downloader
Paste a TikTok username or profile link and download the avatar in the largest file TikTok keeps, up to 1080 x 1080.
YouTube Profile Picture Downloader
Paste a channel @handle or link and download the YouTube channel avatar at its upload size, the largest file YouTube keeps.
X (Twitter) Profile Picture Downloader
Paste a username or profile link and download the X (Twitter) profile photo at its upload size, usually 400 x 400.
LinkedIn Profile Picture Downloader
Paste a LinkedIn profile link and download the public profile photo in the file LinkedIn shows to people who are not logged in.
Pinterest Profile Picture Downloader
Paste a username or profile link and download the Pinterest profile picture in the largest file Pinterest shows, 280 x 280.
Social Media Image Sizes
Every surface in one table, each figure dated against the platform own page, with a checker per surface.
Instagram Grid Maker
Split one photo across your profile grid, numbered in the order you post them so the picture assembles the right way up. Nothing is uploaded.
Instagram Image Resizer
Free Instagram image resizer. Pick 1:1, 4:5, 3:4, 1.91:1 or 9:16, fit the whole photo or crop it, and download it at the exact size Instagram keeps.
Facebook Image Resizer
Free Facebook image resizer. Pick feed, square, link, story or cover, fit the whole photo or crop it, and download a JPG or PNG at the exact size. Nothing is uploaded.
X (Twitter) Image Resizer
Free X image resizer. Pick 16:9, square, 4:5 or header, fit the whole photo or crop it, and download a JPG or PNG under the 5 MB limit. Nothing is uploaded.
Instagram Mockup Generator
Drop a picture and get a realistic Instagram post or ad mockup: your name, caption, likes, light or dark, 1:1 or 4:5. Download a PNG. Nothing is uploaded.
Facebook Ad Mockup Generator
Drop a picture and get a realistic Facebook feed ad mockup: page name, primary text, headline, button and reactions, light or dark. Download a PNG. Nothing is uploaded.
Instagram Comment Generator
Type a username and a comment and get the Instagram Reels "Reply to comment" sticker or a comment row, with or without the verified badge, as a transparent PNG. Nothing is uploaded.
TikTok Comment Generator
Type a name and a comment and get the TikTok "Reply to comment" sticker or a comment row as a transparent PNG at 2x or 3x. Nothing is uploaded.
AI Ad Generator
Paste your store URL and get finished static ads built from your customer reviews and from ads winning in your market.
YouTube Tag Generator
Type a video title and topic and get YouTube tags from specific to broad, counted against the 500 character limit, ready to paste.
YouTube Description Generator
Write a YouTube description from what your video covers: opening lines for above the fold, your chapters and links, and three hashtags.
TikTok Caption Generator
Describe the video and the product and get three TikTok captions with a hook first line, for a post, a Spark Ad or an in-feed ad.
Instagram Bio Generator
Say who the account is for and get 5 Instagram bios, each inside the 150 character limit, with a count and a Copy button.
Facebook Hashtag Generator
Paste a Facebook post and get hashtags in groups, specific first, each one a single word Facebook can link, with one Copy all.
LinkedIn Hashtag Generator
Paste a LinkedIn post and get hashtags for your industry, your role and the topic, each one a single word, with one Copy all.
TikTok Bio Generator
Say what you sell or post and get 5 TikTok bios, each inside the 80 character limit, with a count and a Copy button.
TikTok Username Generator
Say what your account is about and get TikTok username ideas in three groups, each one checked against TikTok's username rules.
Instagram Transcript Generator
Drop a Reel you saved from Instagram and get the transcript with timestamps. Copy it or download a TXT or SRT file. Free, no sign-up, nothing is uploaded.
TikTok Font Generator
Type your name, bio or caption and copy it in 21 text styles that paste into TikTok: bold, script, gothic, bubbles and more.
AI Product Description Generator
Generate compelling product descriptions in multiple tones and lengths.
Creative Brief Generator
Turn a product, an audience and real customer language into a ten-section brief: one message, the insight behind it, deliverables and success metrics.
Brand Kit Generator
Read your brand kit off your own site: the colours in your CSS, the fonts you already use, and tone words evidenced by your own sentences.
Hook Generator
Turn your product and real customer reviews into ad, email, and landing page hooks, each labelled with the angle it uses.
AI Content Generator
The hub for the seven. One idea into posts, captions, carousels, scripts or a week of ideas.
Social Media Post Generator
One idea into three posts, each written for the platform you pick, with its angle named.
Instagram Caption Generator
Describe the photo and get five captions at the vibe, length and emoji level you choose.
Instagram Carousel Generator
A topic into 5, 7 or 10 slides written in reading order, plus the caption to go under them.
Video Script Generator
A Reels, TikTok or Shorts script beat by beat: the line to say and the shot to film beside it.
LinkedIn Post Generator
One thing you know into three LinkedIn posts that read like a person, not a press release.
Content Idea Generator
Six post ideas for your account, each with its format, its opening line and why it would work.
Facebook Ads Report
Drop your Ads Manager export to see winners, fatiguing ads, budget leaks and what to test next.
Competitor Ad Finder
Enter one brand and open all four public ad libraries at the right place, with what each one will and will not show you.
TikTok Safe Zone Checker
Drop a TikTok ad, image or video, and see what the tabs, buttons and caption cover, drawn on your own frame. Nothing is uploaded.
TikTok Video Downloader
Paste a TikTok video link and save the MP4, without the watermark when TikTok keeps that file. No app, no sign-up.
Pinterest Video Downloader
Paste a pin link and save the video as an MP4 in the largest size Pinterest keeps, idea pins included.
Facebook Ad Downloader
Paste a Meta Ad Library link or ad ID and save the ad's video or pictures, one file per carousel card.
YouTube Transcript Extractor
Paste a YouTube video or Short link and get its transcript with timestamps or as plain text. Copy it, or download TXT or SRT.
TikTok Transcript Generator
Paste a TikTok video link and get what is said, with timestamps or as plain text. Copy it, or download TXT or SRT.
Want the ads, not just the numbers?
These tools give you a snapshot. Selzee is an AI ad generator: drop your website and get finished, on-brand static ads recreated from the ads winning on Meta right now, with new ones every day.
Get started for free