Free tools
Free tools for every network you post to
Count characters, resize images and style text for 14 social networks. Every tool runs in your browser, and every limit comes with its sources.
No sign-up, no uploads, no watermark.
Start here
Three tools that cover every channel
Each one works across all networks at once. For presets, rules and tips specific to one network, open its page below.
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Character counter
Paste a post once and check it against the main limit of all 14 networks, from 280 characters on X to 524,288 on Tumblr.
Open the character counter -
Text styler
Turn plain words into 17 Unicode styles, from bold and italic to script, fraktur and bubble letters, ready to paste into bios and posts.
Open the text styler -
Image resizer
Crop or fit an image to 51 preset sizes for posts, stories, covers and profile pictures, then download it as PNG or JPG.
Open the image resizer
By network
Tools for each network
Network pages come preset with that network’s limits or sizes, explain how it counts characters, and list the sources behind every number.
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Instagram
Caption 2,200 · Bio 150
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Facebook
Post 63,206 · Comment 8,000
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TikTok
Video caption 2,200 · Photo post title 90
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LinkedIn
Post 3,000 · Comment 1,250
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YouTube
Video description 5,000 · Video title 100
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X
Post 280 · Bio 160
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Threads
Post 500 · Bio 150
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Pinterest
Pin description 800 · Pin title 100
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Google Business Profile
Update 1,500 · Business description 750
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Bluesky
Post 300 · Bio 256
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Mastodon
Post 500 · Bio 500
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Reddit
Title 300 · Text post body 40,000
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Tumblr
Post 524,288 · Text block 4,096
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Telegram
Message 4,096 · Media caption 1,024
How they work
Private, accurate and free to use
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Runs in your browser
Text and images are processed on your device. Nothing is uploaded to Postocial or kept after you close the page.
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Counts what people see
An emoji with a skin tone counts as one character. Network pages explain where a network counts differently, like links on X.
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Limits with sources
Every figure links to the docs or guide it comes from, researched on November 1, 2026.
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No strings attached
No account, no usage limit and no watermark on the images you download.
FAQ
Questions about the free tools
Are these social media tools really free?
Yes. Use them as often as you like, with no account, no usage limit and no watermark on downloaded images.
Do the tools upload my text or images?
No. The character counter, text styler and image resizer all run in your browser. Your text and images stay on your device and are gone when you close the page.
Where do the limits and sizes come from?
From each network’s help pages and developer docs where they exist, and from established guides such as Hootsuite’s where a network publishes no figure. Every network page lists its sources, researched on November 1, 2026.
Which networks are covered?
Every network Postocial publishes to: Instagram, Facebook Pages, TikTok, LinkedIn (profiles and pages), YouTube, X (with your own X API key), Threads, Pinterest, Google Business Profile, Bluesky, Mastodon, Reddit, Tumblr and Telegram.
Can I schedule the posts I prepare here?
Yes, with Postocial. It publishes to all 14 networks from one calendar and keeps a separate version of each post per network. Start a 7-day free trial. A card is required to start the 7-day free trial. When the trial ends, we charge your card for the plan you picked, unless you cancel before.
Prepared the post? Schedule it everywhere
Postocial puts all 14 networks on one calendar, with a version of each post per network and a queue that fills your preferred time slots. Try it free for 7 days.
A card is required to start the 7-day free trial. When the trial ends, we charge your card for the plan you picked, unless you cancel before.