A Pinterest pin preview shows how your pin will look in the feed before you publish it, which matters more than it sounds. In the feed Pinterest shows the image, about 40 characters of the title, and no description at all. The best free preview we found is SiteToSocial’s Pin Preview & SEO Checker: it shows the feed view and checks your title, description and alt text for length and keyword placement as you type. It’s unlimited and needs no signup.
What people actually see in the Pinterest feed
| Part of the pin | In the feed | When the pin is opened |
|---|---|---|
| Image | Yes; cropped if taller than 1:2.1 | Full image |
| Title (100 characters) | Often only about the first 40 on phones | Full title |
| Description (500 characters) | Hidden | The first lines, then “more” |
| Alt text (500 characters) | Hidden; read by screen readers | Hidden |
| Your profile name | Sometimes, under the pin | Yes |
Two lessons fall straight out of that table. The image and its headline do almost all the selling in the feed. And the keyword has to sit at the very start of the title, because the rest may never be seen. Everything else is read by Pinterest’s search, not by people scrolling. (Title missing from the feed altogether? That has its own causes, covered in Pinterest title not showing.)
The best free Pinterest pin preview tools
| Tool | Shows | Checks the text | Fill from a URL | Free use |
|---|---|---|---|---|
| 1. SiteToSocial | Feed view of your pin | Lengths, keyword placement, hashtags, readability | Yes | Unlimited |
| 2. SocialKit | A 2:3 mock-up with the Save button | Character counts | No | Free, in the browser |
| 3. Publer | A pin mock-up | No | No | Free, no registration |
| 4. PostSyncer | Formatted pin text | Keyword and board suggestions | No | Free |
| 5. Kontentino | A board grid of several pins | No | No | Free, no login |
1. SiteToSocial: preview plus an SEO check
The other tools show you a mock-up. SiteToSocial also tells you what to fix. Paste a page URL and it fills in a title, description and image for you, or type your own. Then it flags anything that would cost you: a keyword buried past the cut-off, a description that’s too thin or too long, a hashtag wall, an empty alt text. Every flag says what to change. It’s free with no daily limit, so you can check every pin.
2. SocialKit and 3. Publer
Both draw a realistic pin mock-up in your browser. SocialKit’s includes the red Save pill and character counts; Publer’s is the simplest, with no registration at all. Good for seeing the design. Neither will tell you if your keyword is in the wrong place.
4. PostSyncer and 5. Kontentino
PostSyncer formats your pin text and suggests keywords and boards. Kontentino’s board planner previews several pins together as a grid, handy for checking whether a board looks coherent before you fill it.
A 10-point check before every pin goes live
- Vertical 2:3 image, ideally 1000 x 1500. Nothing important in the bottom of a long pin.
- Headline readable on a phone, on a calm background.
- Keyword in the first 40 characters of the title.
- Keyword in the first sentence of the description, plus one or two related phrases.
- A call to action at the end of the description.
- The link goes to the exact page the pin shows, not your homepage. Click it.
- The most specific board for that keyword.
- Alt text that describes the image, including any words on it.
- Hashtags: none, or three to five at the end. Never in the title.
- Different from your other pins for the same page: new image, new keyword.
Need help with the parts? See the Pinterest title formulas, the description templates and the image size guide.
Preview the whole board, too
Individual pins can look great and still make a messy board. Every so often, open a board on your phone and scroll it like a visitor would. Do the pins look like they belong together? Does the board name match what’s on it? Boards are read by search as well, so our board naming guide is worth a look.
And if you’re checking dozens of pins a week, consider skipping the manual step altogether: SiteToSocial’s paid plans write, design and post pins that already pass these checks. See how it compares in our ranking of the best Pinterest automation tools.
Frequently asked questions
How do I preview a Pinterest pin before posting?
Use a pin preview tool such as SiteToSocial's free Pin Preview & SEO Checker: add your image, title, description and alt text, or fill them from a page URL, and it shows the pin as it appears in the feed and checks the text. Pinterest's own pin builder also shows a basic preview before you publish.
Does Pinterest cut off pin titles?
Yes. Pinterest allows 100 characters, but the feed often shows only about the first 40 on phones. Put the keyword at the start so it survives the cut.
Is the pin description shown in the feed?
No. The description appears only when someone opens the pin, and even then only the first lines show before "more". Pinterest still reads all of it for search.
How long can a Pinterest pin description be?
Up to 500 characters in Pinterest's pin builder; scheduling tools that post through the API can send up to 800. Aim for 150 to 300 for most pins.
Do pin preview tools upload my image?
Good ones don't. SiteToSocial's and SocialKit's previews run in your browser, so the image stays on your device. Check the tool's page if privacy matters for a client's unreleased images.
Do I need to connect Pinterest to preview a pin?
No. Preview tools work on their own; you only connect Pinterest when you want something posted for you.
