What this tool does
This Reddit post preview tool shows how a text, link or image post may look as a card in the feed before you submit it. Enter a subreddit, a title and an optional flair, add your text, link or image, and the card updates as you type.
The layout is approximate, because Reddit changes its design from time to time and apps can differ, so treat it as a quick check rather than an exact copy. Body text appears as plain feed text; to write and preview Markdown such as bold text, tables and spoilers, use the Reddit post formatter. To fetch a live page and audit its Open Graph tags, use the link previewer.
When it is useful
- Checking that a long title reads well in the feed before you post it.
- Seeing how a link post may look with its domain and thumbnail.
- Previewing an image post to check that the picture and the title work together.
- Trying a flair and title together before posting to a community with strict rules.
- Writing Open Graph tags for a page you plan to share, so the Reddit link preview has a clear title and image.
How to preview a Reddit post
- Choose Text post, Link post or Image post.
- Enter the subreddit, your username, the title and an optional flair.
- Add your body text, a link with an optional thumbnail, or an image from your device or a URL.
- Switch between Card and Compact, and between light and dark, to see each layout.
- Read the checks, fix any warnings, then copy the Open Graph tags if you need them.
Tips for a clear post
- Write a specific title that says what the post is about, since it is the most visible part of the card.
- Avoid writing the whole title in capital letters. It is harder to read, and many communities discourage it.
- Read the community rules on flair, title format and allowed post types before you post.
- For link posts, give the page a clear og:title and an og:image of about 1200 x 630 px, so the thumbnail is more likely to look right.
- Check the post in Reddit's own composer before you submit, because the real layout may differ from this preview.
Frequently asked questions
Can I preview a Reddit post before posting?
Reddit's composer shows only a limited preview, as far as we know. This tool approximates how the post may look as a feed card, but always check it in the composer before you submit.
What is the Reddit title limit?
Post titles can currently be up to 300 characters. The checks panel counts every character, including emoji, as you type.
Does this show my real post?
No. It is an approximate layout drawn in your browser, and nothing is sent to Reddit.
How do I preview Markdown formatting?
This tool shows body text as plain feed text. To write and preview bold text, tables, spoilers and other Markdown, use the Reddit post formatter.
How do I check what a link will look like from its page tags?
Use the link previewer. It can fetch a public page, read its Open Graph tags and show how the link card may look on several platforms.
Is it free and does it store my text?
It is free with no signup. Everything runs in your browser, and your text and images are not uploaded or saved.