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Multi Platform Publishing Guide

Learn more about multi platform publishing guide in our help documentation.

Simplify Your Social Media Strategy

Effortlessly publish content across all platforms with Postly’s all-in-one solution.
We manage the complexities of media formatting, ensuring your images, videos, and text are optimized for each channel.
Save time, stay consistent, and share with ease.

Pro tip: Leverage Postly’s automation to streamline your workflow and enhance engagement across platforms.

Why Postly for Cross-Platform Publishing

Postly simplifies social media management by handling media optimization for you.
From resizing images to validating videos, we ensure your content meets platform-specific standards, allowing you to focus on creating compelling posts.

  • One-Click Multi-Platform Sharing: Publish images, videos, and text to all channels at once.
  • Automated Media Processing: We resize, reformat, and validate content to meet platform requirements.
  • Error-Free Publishing: Instant notifications and guided fixes ensure seamless posting.

Learn more about cross-platform publishing

Unlock unlimited high-quality uploads and advanced video features with Postly’s premium plans.

1. Image Auto-Fix: Flawless Visuals, No Effort

Postly’s Image Auto-Fix optimizes your images for every social platform.
We automatically adjust size, format, and compression, ensuring professional-quality visuals without manual work.

  • Supported Formats: JPEG, PNG, BMP, TIFF, WebP, SVG, HEIF, RAW, ICO
  • Platform-Specific Resizing: Optimized for TikTok, Instagram, LinkedIn, Twitter, and more
  • Live Previews: Review and tweak images before publishing

Learn more about Image Auto-Fix

Ensure images meet platform size limits to avoid issues.
Postly alerts you if manual adjustments are needed.

Image Auto-Fix FAQs

How does Image Auto-Fix streamline publishing?

It auto-adjusts images to fit each platform’s specs, eliminating manual resizing.

What if my image format isn’t compatible?

Postly converts unsupported formats or prompts you to replace them.

Can I see changes before posting?

Yes, the Preview feature lets you review images for each platform.

2. Video Validation: Hassle-Free Video Publishing

Postly’s Video Validation checks your videos to ensure they meet platform standards, preventing failed uploads or rejections.
We validate format, resolution, duration, and file size for smooth publishing.

  • Supported Formats: MP4, MOV, WEBM, AVI, and more
  • Comprehensive Checks: Validates resolution, aspect ratio, length, and size
  • Auto-Fixes: Adjusts videos automatically or guides you through manual fixes

Learn more about Video Validation

Videos exceeding platform limits (e.g., Twitter’s 140-second or TikTok’s 4GB cap) may need trimming or compression.
Postly provides actionable fix suggestions.

Video Validation FAQs

How does Video Validation improve publishing?

It ensures videos meet platform requirements, avoiding errors or delays.

What if my video doesn’t comply?

Postly alerts you with steps to trim, compress, or reformat the video.

Can I preview videos?

Yes, you can preview how your video appears on each platform before posting.

3. Platform-Specific Content Guidelines

Postly ensures your content complies with each platform’s unique requirements.
Here’s a breakdown of key specs per platform:

TikTok

  • Video: Up to 4GB, max 10 minutes, 1080×1920px, MP4, MOV, WebM
  • Text: Captions up to 150 characters
  • Images: Direct image posting not supported

Note: Vertical videos are essential for TikTok engagement

YouTube

  • Video: Up to 128GB, max 12 hours, 240p to 4K, or vertical videos (Shorts)
  • Text: Titles up to 100 characters, descriptions up to 5,000 characters
  • Images: Thumbnails 1280×720px, JPG, PNG, BMP, GIF

Note: Use high-resolution thumbnails for better click-through rates

Facebook

  • Video: Up to 10GB, max 4 hours, 1080p in landscape, square, or vertical
  • Images: Up to 8MB, 1080×1080px, JPEG, PNG, GIF
  • Text: Posts up to 63,206 characters

Note: Use vertical formats for Reels and Stories

Instagram

  • Video: Up to 4GB, 3 seconds–15 minutes, 1080×1080px square or 1080×1920px vertical
  • Images: Up to 8MB, 1080×1080px square, 1080×1350px vertical, JPEG, PNG
  • Text: Captions up to 2,200 characters, up to 30 hashtags

Note: Strict vertical aspect ratios required for Reels and Stories

Twitter (X)

  • Video: Up to 512MB, max 140 seconds, 1280×720px, MP4, MOV
  • Images: Up to 5MB, 1200×675px, JPEG, PNG, GIF
  • Text: Up to 280 characters (supports threads and polls)

Note: Premium plans optimize Twitter video uploads

LinkedIn

  • Video: Up to 5GB, 3 seconds–10 minutes, 1080p, MP4
  • Images: Up to 8MB, 1200×627px, JPEG, PNG, GIF
  • Text: Posts up to 3,000 characters; articles up to 125,000 characters

Note: Align tone with LinkedIn’s professional standards

Pinterest

  • Video: Up to 2GB, 4–15 minutes, 1080×1920px vertical, MP4, MOV
  • Images: Up to 32MB, 1000×1500px, JPEG, PNG
  • Text: Titles up to 100 characters, descriptions up to 500 characters

Note: Vertical visuals drive higher Pinterest engagement

Additional Platforms

  • Google Business Profile:
    Images up to 5MB, 720×720px minimum, JPEG, PNG. No video support via API.
  • Reddit:
    Videos up to 1GB, 15 minutes, 1080p. Images up to 5MB, 1080×1080px.
  • Telegram:
    Videos up to 20MB, 60 seconds, 1080p. Images up to 10MB, 1080×1080px.
  • Blogger:
    Videos up to 100MB, 1080p. Images up to 15MB, 1600×900px.
  • WordPress:
    Videos up to 100MB, 1080p. Images up to 25MB, 1920×1080px.
  • Bluesky:
    Videos up to 50MB, 60 seconds, 1080p. Images up to 1MB, 1080×1080px.
  • RSS Feeds:
    JPEG, PNG, MP4 via enclosure, no strict size limits.

Learn more about other platforms

Postly’s API-driven approach ensures compliance with platform guidelines, reducing errors and increasing reach.

Start Publishing with Postly

Ready to simplify your social media strategy?
Join Postly today and let us handle the media management, so you can focus on creating impactful content.

Get Started Now

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15+Platforms Supported
360,000Posts per month
42.0%Engagement Rate
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Before vs After Postly

How teams transform with Postly

Before

Hours spent scheduling posts manually

After

Fully automated scheduling with AI

Before

Low engagement and generic captions

After

42% boost in engagement with AI-optimized content

Before

Slow audience growth

After

15.2x faster community growth

Before

Stressed team and scattered workflow

After

Centralized, calm, and collaborative dashboard

Exceptional Customer Service and Lightning-Fast Problem Resolution

We initially contacted Postly because we have two Google Business Profile accounts with identical business names in different cities—a common scenario for multi-location businesses. Postly couldn't distinguish between them, risking the wrong posts going live. Their support team responded quickly and professionally, escalating the issue when the initial workaround didn’t suit our needs. We received a personal response from leadership, who immediately involved engineering and delivered a fix within 24 hours. This kind of speed and ownership is rare. Postly offers excellent pricing, fast and committed support, and leadership that delivers on promises. They turned a critical limitation into a showcase of how software companies *should* respond to feedback.

Alex T.

Excellent social media management solution

Postly.ai has been an excellent tool for managing our social media. The platform makes it easy to schedule across multiple networks and has a clean, user-friendly interface. Their customer support is helpful and usually replies within a week to resolve any concerns. It’s been a smooth experience overall, and we’re happy with the results.

T. V.

I can easily schedule posts on all channels

Postly is the best social media managing software. I have tried a few other social media scheduling apps, but this one is by far the easiest to use. I was able to schedule all my posts in less than an hour, and it took me 5 minutes to figure out how to do that.

Ishan Avasthi

I own a marketing agency and getting…

I own a marketing agency and getting post approval to a good spot without having to pay all kinds of extra fees has been the biggest pain for us. After talking through our needs with my team, I went searching and tried dozens of tools that just didn't do what we needed or were so pricey that it stole all our profits. Postly's double approval makes it easy for my team to send over content and for another team member to approve before the customer ever sees it. It makes my job much easier and it gives us all piece of mind that branding and messaging will always be top notch with this tool. Thank you Postly!

Kabrina Budwell

I absolutely love Postly

I absolutely love postly. It is the only social media scheduling website that I use and it's the best one out there. There are so many features that make my job so much easier, it makes my social media posts perfect every time. The fact that this site has a free plan too , gives me enough time to test everything for myself and see if I like the program or not before committing to buying a subscription which is very reasonable in price too!

Murphy Miller

This is the best platform ever

This is the best platform ever! And Paul is amazing! The customer service I get every time is amazing! I know this platform will become the best platform to manage your social media! Thank you for your hard work Team Postly!

Elena Diaz, Systemizit Limited

100% Positive

Hi There, My name is Bud Chapplain and my company is The Self Employed Business Academy. Recently we started our Social Media Campaign and I was introduced to Postly. I am happy to say that the experience as been 100% positive. Easy to use and the platforms were just what we wanted. Keep up the good work and congrats with the new concepts.

Bud Chapplain

Ich finde es super

Ich finde es super, es ist einfach zu bedienen und funktioniert richtig gut. Ich habe es noch nicht bereut, mir dieses Tool zu leisten.

Andrea Forsthuber Lifeboxx

Postly is a Time Saver

I am extremely pleased with this software. This is a social media marketing tool that helps you track all your social media in one place. You can easily post updates across multiple social media accounts, which really saves a lot of time updating blog posts for each platform individually. I really like the simplicity of the configuration and the ease of use of the software. No more accessing multiple pages. Easy access from one Dashboard. If you're looking for an easy and affordable way to manage your social media accounts, then do yourself a favour and don’t look further.

Edwin Giliams

I have been using Postly for around 2…

I have been using Postly for around 2 weeks now, the platform is really easy to navigate and use, the AI writer feature makes life so much easier especially when having to write alot of captions for different clients, it generates copy that is actually usable, and if the content isn't 100%, you will definitely be able to bounce off it with ideas to write your own. Highly recommend for social media marketers looking for a reliable and easy software to use.

Social Feast

Postly is Awesome! Highly Recommend!

Postly has made managing not only our own social media accounts, but also our client accounts so much easier. Linking accounts took seconds. Creating a post with their AI copy writer is a snap. I gave it 1 line of text and it generated three professional paragraphs that perfectly matched the tone we were looking for. Instagram has always been a difficult platform for many tools like postly to post to. Postly however is awesome! No issues, no extra steps, simply upload and post. I highly recommend this product!

Charlie

Excelente herramienta para la creación…

Excelente herramienta para la creación de contenido social. recomendado!!! atte Roger Bolivar

rogerfxbolivar

Clean Simple Social Media Posting

Postly has a great interface that makes social media management simple and clean. It's easy to use, works great, and has all of the popular platforms.

Josiah

Best Performer for the cost

Firstly, the pricing vs what you get is unbeatable in my opinion. It is quite easy to understand the interface and it has a very small learning curve. The unlimited team member feature helped us migrate all our Social media planning, scheduling and posting efforts to Postly, while saving hundreds of hours per year. Posting to multiple social media accounts might not be a big deal when you are sole manager and have a low post frequency. However, the chaos starts when you distribute this posting task to other employees. Even tracking who has social media posting access to which platform was a big issue even in our team of 4 people. It is saving us a lot of time and headaches. We have tried many tools for the job. Postly has the best price for the features you get.

can ogun

Best App For Social Media Management

I was using a social media management app which had very restrictions. like cant post videos, cant reschedule posts etc. Then in a facebook group someone suggested me to try postly! i first sign up as a free account to try the app. To my delight the user interface is so far the best i have seen! very easy to use even if you are a first time user you can directly start within 5 minutes! no steep learning curve. If you are looking for an app to manage multiple social media accounts then just go for postly! this probably the best app as of now!

Kashyap Rawat

Master of All!t

I have been looking for a social media automation tool for a long time, and finally, I think Postly is the one. At this price point, maintaining all my social media platforms should be hassle-free. Almost all the major social media platforms are included, 9 to be exact, and hopefully, more are on the way. Lastly, I was not looking for an AI writer but including that made it more lucrative. Hopefully, I will enjoy working with it, and Postly will continue to improve its service.

MMZ

Exceptional Customer Service and Lightning-Fast Problem Resolution

We initially contacted Postly because we have two Google Business Profile accounts with identical business names in different cities—a common scenario for multi-location businesses. Postly couldn't distinguish between them, risking the wrong posts going live. Their support team responded quickly and professionally, escalating the issue when the initial workaround didn’t suit our needs. We received a personal response from leadership, who immediately involved engineering and delivered a fix within 24 hours. This kind of speed and ownership is rare. Postly offers excellent pricing, fast and committed support, and leadership that delivers on promises. They turned a critical limitation into a showcase of how software companies *should* respond to feedback.

Alex T.

Excellent social media management solution

Postly.ai has been an excellent tool for managing our social media. The platform makes it easy to schedule across multiple networks and has a clean, user-friendly interface. Their customer support is helpful and usually replies within a week to resolve any concerns. It’s been a smooth experience overall, and we’re happy with the results.

T. V.

I can easily schedule posts on all channels

Postly is the best social media managing software. I have tried a few other social media scheduling apps, but this one is by far the easiest to use. I was able to schedule all my posts in less than an hour, and it took me 5 minutes to figure out how to do that.

Ishan Avasthi

I own a marketing agency and getting…

I own a marketing agency and getting post approval to a good spot without having to pay all kinds of extra fees has been the biggest pain for us. After talking through our needs with my team, I went searching and tried dozens of tools that just didn't do what we needed or were so pricey that it stole all our profits. Postly's double approval makes it easy for my team to send over content and for another team member to approve before the customer ever sees it. It makes my job much easier and it gives us all piece of mind that branding and messaging will always be top notch with this tool. Thank you Postly!

Kabrina Budwell

I absolutely love Postly

I absolutely love postly. It is the only social media scheduling website that I use and it's the best one out there. There are so many features that make my job so much easier, it makes my social media posts perfect every time. The fact that this site has a free plan too , gives me enough time to test everything for myself and see if I like the program or not before committing to buying a subscription which is very reasonable in price too!

Murphy Miller

This is the best platform ever

This is the best platform ever! And Paul is amazing! The customer service I get every time is amazing! I know this platform will become the best platform to manage your social media! Thank you for your hard work Team Postly!

Elena Diaz, Systemizit Limited

100% Positive

Hi There, My name is Bud Chapplain and my company is The Self Employed Business Academy. Recently we started our Social Media Campaign and I was introduced to Postly. I am happy to say that the experience as been 100% positive. Easy to use and the platforms were just what we wanted. Keep up the good work and congrats with the new concepts.

Bud Chapplain

Ich finde es super

Ich finde es super, es ist einfach zu bedienen und funktioniert richtig gut. Ich habe es noch nicht bereut, mir dieses Tool zu leisten.

Andrea Forsthuber Lifeboxx

Postly is a Time Saver

I am extremely pleased with this software. This is a social media marketing tool that helps you track all your social media in one place. You can easily post updates across multiple social media accounts, which really saves a lot of time updating blog posts for each platform individually. I really like the simplicity of the configuration and the ease of use of the software. No more accessing multiple pages. Easy access from one Dashboard. If you're looking for an easy and affordable way to manage your social media accounts, then do yourself a favour and don’t look further.

Edwin Giliams

I have been using Postly for around 2…

I have been using Postly for around 2 weeks now, the platform is really easy to navigate and use, the AI writer feature makes life so much easier especially when having to write alot of captions for different clients, it generates copy that is actually usable, and if the content isn't 100%, you will definitely be able to bounce off it with ideas to write your own. Highly recommend for social media marketers looking for a reliable and easy software to use.

Social Feast

Postly is Awesome! Highly Recommend!

Postly has made managing not only our own social media accounts, but also our client accounts so much easier. Linking accounts took seconds. Creating a post with their AI copy writer is a snap. I gave it 1 line of text and it generated three professional paragraphs that perfectly matched the tone we were looking for. Instagram has always been a difficult platform for many tools like postly to post to. Postly however is awesome! No issues, no extra steps, simply upload and post. I highly recommend this product!

Charlie

Excelente herramienta para la creación…

Excelente herramienta para la creación de contenido social. recomendado!!! atte Roger Bolivar

rogerfxbolivar

Clean Simple Social Media Posting

Postly has a great interface that makes social media management simple and clean. It's easy to use, works great, and has all of the popular platforms.

Josiah

Best Performer for the cost

Firstly, the pricing vs what you get is unbeatable in my opinion. It is quite easy to understand the interface and it has a very small learning curve. The unlimited team member feature helped us migrate all our Social media planning, scheduling and posting efforts to Postly, while saving hundreds of hours per year. Posting to multiple social media accounts might not be a big deal when you are sole manager and have a low post frequency. However, the chaos starts when you distribute this posting task to other employees. Even tracking who has social media posting access to which platform was a big issue even in our team of 4 people. It is saving us a lot of time and headaches. We have tried many tools for the job. Postly has the best price for the features you get.

can ogun

Best App For Social Media Management

I was using a social media management app which had very restrictions. like cant post videos, cant reschedule posts etc. Then in a facebook group someone suggested me to try postly! i first sign up as a free account to try the app. To my delight the user interface is so far the best i have seen! very easy to use even if you are a first time user you can directly start within 5 minutes! no steep learning curve. If you are looking for an app to manage multiple social media accounts then just go for postly! this probably the best app as of now!

Kashyap Rawat

Master of All!t

I have been looking for a social media automation tool for a long time, and finally, I think Postly is the one. At this price point, maintaining all my social media platforms should be hassle-free. Almost all the major social media platforms are included, 9 to be exact, and hopefully, more are on the way. Lastly, I was not looking for an AI writer but including that made it more lucrative. Hopefully, I will enjoy working with it, and Postly will continue to improve its service.

MMZ

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