Which tool do you need?
| You want to… | Use |
|---|---|
| Make one image fit every network’s post, story, cover and profile sizes | Social Media Image Resizer |
| See where Instagram or LinkedIn cuts a post with “more” | Post Preview Generator |
| Send a client a picture of the post for approval | Post Preview Generator |
Every network, one set of tools
Each network has its own image sizes and its own point where it hides a post behind “more”. The tools know all of them, so one image and one draft work everywhere.
| Network | Image resizer | Post preview |
|---|---|---|
| X | ||
| Threads | ||
| TikTok | – | |
| – | ||
| Bluesky | ||
| Mastodon | – | |
| YouTube | – |
Private by design
The tools never upload anything. Images are resized with your browser’s own graphics engine and previews are drawn on the page, all on your own device. You can use them for unreleased campaigns and client work without anything leaving your computer.
Kept up to date
Networks change sizes and limits without much notice. We review every number the tools use against each network’s documentation and live apps, and every tool page shows the date of its last review.
Frequently asked questions
Are these social media tools really free?
Yes. Every tool is free with no sign-up, no watermark and no usage limit. They are part of how Hyvo helps social media teams; the paid product is Hyvo itself, the AI-Powered Social Media Management Tool.
Do the tools upload my images or posts?
No. They run entirely in your browser. Images are resized and previews drawn on your own device, and nothing is sent to Hyvo or anyone else.
Which social networks do the tools support?
X, LinkedIn, Instagram, Threads, Facebook, TikTok, Pinterest, Bluesky, Mastodon and YouTube. The table on this page shows which tool covers which network.
How often are the sizes and limits updated?
We check every image size and truncation point against the networks’ own documentation and live apps, and each tool page shows the date it was last reviewed.
Do the tools work on a phone?
Yes. Every tool works in any modern browser on a phone, tablet or computer. The image resizer and post preview are easiest on a larger screen.