Poskoo

Free tool · no signup needed

Instagram post preview

Find your frame. Refine your first line. See how your photo and caption work together before you post.

Display only. We never look up profiles or connect to Instagram.

96 / 2,200 characters

JPG, PNG or WebP · up to 10 MB · stays in this browser tab.

Preview shape

Your feed preview

your.studio

your.studio A little behind the scenes ✨

Cropping and caption truncation are approximations. This centered crop and estimated caption fold may differ from Instagram on your device. Your original file is unchanged.

Working sequence: check length in the caption counter, inspect the approximate feed preview here, then explore scheduling to publish it automatically.

Open the Instagram scheduler

From idea to feed in three steps

1. Choose a photo

Pick a local image and enter your display handle. No Instagram login needed.

2. Shape your story

Write your caption with emoji and line breaks. Expand it to review the full text.

3. Check the frame

Compare square and portrait crops, then copy your caption for your next post.

Before you post

Are my images private?

Yes. Images stay in this browser tab through local object URLs. This tool never uploads them or fetches your profile. Images and captions are not saved; refreshing clears the preview.

How accurate is the Instagram preview?

This is a feed mockup, not an official Instagram renderer. Centered cropping and caption truncation are approximations; fonts, spacing and the fold can vary by device and app version. Check the final post in Instagram.

Can I schedule or publish from this tool?

This free tool only previews a single image and copies captions. It does not publish, schedule or carry your draft into signup. Copy your caption before leaving, then explore the scheduler or create an account separately.

Instagram caption counterInstagram image size toolExplore the Instagram scheduler

Give your next post a head start

Copy your caption, keep your original image handy and explore Poskoo for your next step.

Create your account