Can you post on Instagram without a photo?

The short answer

Instagram’s feed is built on images. A post with only a caption can’t be published, whether you post in the app or through a scheduler. Instagram’s own app has text-only formats outside the feed, such as a text Story, but those aren’t feed posts and they are made by hand in the app.

So when you have something to say and no photo to say it with, make the words the photo. A text card is an image with one short message on a plain background. It is how announcements, quotes, opening hours and “we’re closed Monday” posts look on most business accounts you follow.

Make a text card in Bloom

In Bloom’s composer, under the upload button, there is Make a text card from your words. It takes the first part of your caption, without the hashtags, and sets it on a card in large type. You can edit the words (up to 220 characters), choose one of four colours (pink, cream, black or blue) and tap Use this image. The card is attached to your post like any photo you uploaded.

• Portrait 4:5, 1080 by 1350 pixels. A standard Instagram portrait size, so it fills more of the screen than a square.
• Made on your device. The card is drawn in your browser or the app, from your words. Nothing is generated for you.
• On every plan, including the free one.

Then schedule it as usual: Bloom publishes it to Instagram at the time you picked. The same card works on your other accounts, and the text that sits beside it is still your full caption.

What makes a text post readable

A text card has about one second to be understood in a feed. These make the difference:

1. One idea per card. If you need two sentences, the second probably belongs in the caption.
2. Fewer words, bigger type. Twelve words at a size you can read at arm’s length beat forty that need a zoom.
3. Strong contrast. Dark text on a light card or light on dark. Busy backgrounds and photos behind text are where readability goes to die.
4. Put the details in the caption. The card says “Back in stock Friday”; the caption gives sizes, times and the link in bio.
5. Add alt text. Screen readers can’t read words inside an image. Bloom lets you add alt text to photos you post to Instagram; repeat the card’s words there.

When one card isn’t enough

For a list, a short how-to or a story in steps, make several cards and post them as a carousel: one point per card, numbered if order matters, with the first card saying what the reader gets by swiping. Make a card, use it, then make the next; Bloom attaches each one in order. The carousel guide covers order, sizes and what each platform does with more than four images.

A text card also mixes well with photos. A card that asks a question, followed by the photos that answer it, is an easy carousel to build from a camera roll.

Where text alone is fine

Instagram is the strict one. Elsewhere a post with words and no image is normal:

So one post can go out as text on Bluesky, Threads and your Facebook Page and as a text card on Instagram, from the same words. If you post to Bluesky too, the character counter shows how your caption fits 300 characters.

Frequently asked questions