Free tools for posts and links
Two practical calculators for Telegram, VK and MAX: check the text length and build a UTM link. No sign-up required.
Tools
Post length checker
Telegram 4096, caption 1024, VK 4096, MAX 4000. Paste your text and see how many characters are left.
UTM builder
Create a link with utm_source, utm_medium and utm_campaign so you can see where visitors come from.
Why these tools
Before publishing, check two things: whether the text fits the platform limit and whether analytics can tell where the reader came from. Both tools work in the browser and do not store what you type.
If you run several channels, a length check saves time on rewrites, while UTM tags help compare Telegram, VK and MAX by clicks instead of guesswork.
Further reading
- Scheduled photos and videos in Telegram — caption limits and albums.
- Cross-posting to Telegram, VK and MAX — one post for several platforms.
- Moving posts between Telegram and VK — formatting, media and links.
Frequently asked
Are the tools really free? #
Yes. Both calculators work without sign-up or payment.
Do you store my text and links? #
No. The calculations run in your browser; the server does not receive what you type.
Can I use them without Postomat? #
Yes, these are standalone tools. Postomat is for scheduling posts when you need it.
Try it on your own channels
Free plan: one channel and ten posts a month, no card required.