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Resizing.app VS Upload-Post

Compare Resizing.app VS Upload-Post and see what are their differences

Resizing.app

Image resizing has never been so simple with free online resizing.app. Convert, optimize, resize images with ease and for absolutely free.

Rating
0 reviews
Pricing
Free Free trial
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Alternatives Is it good?
Upload-Post

Social Media API for developers. Post to TikTok, Instagram, YouTube, Facebook & 19 more platforms with one API call. MCP server for Claude/ChatGPT, white-label for SaaS. 70k+ users.

Rating
0 reviews
Pricing
Freemium Free trial $24 / Monthly (5 Profiles (Each profile 1 tiktok + 1 Instagram...))
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Alternatives Is it good?
Thalam
OpenAI-compatible API gateway for GPT, Claude, Gemini, DeepSeek, Qwen, Kling and more. One key, one endpoint, one bill. Pay per token, no lock-in. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Image Optimisation popularity
100% vs 0%
alternatives listed
205 vs 93

Base details

Website, pricing, platforms and company facts side by side.

Resizing.app
Upload-Post
Website resizing.app upload-post.com
Pricing
Free Free trial Official pricing
Freemium Free trial $24 / Monthly (5 Profiles (Each profile 1 tiktok + 1 Instagram...)) Official pricing
Platforms —
Web REST API N8n Zappier Airtable +2
Company 2019 Startup from Spain · 1 - 9 employees · 2025
Listed in
Image Optimisation Image Processing Photo Editing File Converter +1
APIs Developer APIs Social Media Tools Social Media Scheduling Social Media Analytics +2

About Resizing.app and Upload-Post

In their own words, as submitted to SaaSHub.

Resizing.app
Upload-Post

FREE Resizing.app service allows you to resize your images, optimize them without losing quality, and convert to JPEG, PNG, or WebP. If you have ever wondered how to resize an image quickly, and with no compromise in quality, then the Resizing.app service is a perfect fit for you. With a new and...

Read more about Resizing.app

Upload-Post is a social media API that lets developers post to TikTok, Instagram, YouTube, Facebook, X (Twitter), LinkedIn, Pinterest, Threads and more with a single API call. Built for SaaS platforms, agencies, and developers who need reliable multi-platform publishing without managing...

Read more about Upload-Post

Features and specs

What each product offers, as listed by its team.

Resizing.app 6 features
Upload-Post 7 features
  • User-Friendly Interface
    The app features an intuitive and straightforward interface, making it easy even for novices to resize images without any hassle.
  • No Installation Required
    Being a web-based tool, Resizing.app doesn't require any software installation, making it accessible from any device with internet access.
  • Fast Processing
    The app processes images quickly, reducing the waiting time significantly compared to other similar tools.
  • High-Quality Output
    Despite the quick processing time, Resizing.app maintains high-quality image output, ensuring minimal loss of detail.
  • Privacy-Focused
    The tool offers a significant level of privacy, as it doesn't store images on its servers, providing peace of mind to users concerned about data security.
  • Batch Processing
    Resizing.app supports batch processing, allowing users to resize multiple images simultaneously, thereby saving time.

Possible disadvantages

  • Limited File Formats
    The app supports a limited number of file formats, which might not be sufficient for professional users who work with diverse image types.
  • No Advanced Editing Features
    Resizing.app focuses solely on resizing and doesn't offer advanced photo editing features like cropping, filtering, or color adjustments.
  • Dependent on Internet Connection
    As a web-based application, it requires a reliable internet connection to function, which can be a drawback for users with unstable or no internet access.
  • File Size Limit
    There is often a file size limit for the images that can be uploaded and processed, which might be restrictive for users working with high-resolution images.
  • Multi-Platform Publishing
    Post to TikTok, Instagram, YouTube, Facebook, X, LinkedIn, Pinterest, Threads and more with a single API call.
  • Video & Image Uploads
    Upload videos and images directly via URL or file. Automatic format conversion and optimization for each platform.
  • MCP & AI Agents
    Compatible with every AI Agent: Claude Code, Codex, Chatgpt, Pi, OpenCode... and MCP available and opensource.
  • Post Scheduling
    Schedule posts for future publishing. Set exact date and time for each platform.
  • Analytics & Insights
    Track post performance with views, likes, comments, and engagement metrics across all platforms.
  • White-Label API
    Let your users connect their own social accounts. Full white-label solution for SaaS platforms.
  • n8n & Zapier Integrations
    Native integrations with popular automation tools. Build workflows without code.

Analysis

An editorial look at what each product does well and who it suits.

Resizing.app
Upload-Post

Overall verdict

  • Yes, Resizing.app is a good option for those seeking a reliable and efficient image resizing tool. Its ease of use and quality preservation make it a valuable resource for users with basic to moderate image editing needs.

Why this product is good

  • Resizing.app is a tool designed for resizing images quickly and easily. It offers a straightforward interface and supports various image formats, making it accessible for users who need to adjust image dimensions without complex software. Additionally, it maintains image quality during the resizing process, which is essential for personal and professional use.

Recommended for

    Resizing.app is recommended for photographers, graphic designers, digital marketers, and anyone who needs a simple solution for resizing images. It's also suitable for individuals managing websites, social media content, or digital projects where custom image dimensions are required.

Overall verdict

  • Upload-Post is a solid tool for creators and businesses looking to streamline social media posting across multiple platforms from a single dashboard, offering good value for automating content distribution.

Why this product is good

  • Allows uploading and scheduling content to multiple social media platforms simultaneously, saving significant time
  • Provides API access for developers wanting to integrate posting capabilities into their own applications or workflows
  • Supports major platforms like TikTok, Instagram, YouTube, LinkedIn, and more from one interface
  • Offers a straightforward, developer-friendly approach with clear documentation
  • Helps maintain a consistent posting schedule across channels without manual repetition

Recommended for

  • Content creators managing presence across multiple social platforms
  • Developers building apps that need automated social media posting features
  • Small businesses and marketing teams wanting to centralize their content distribution
  • Social media managers handling multiple accounts or clients
  • Agencies looking to automate cross-platform publishing workflows

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Resizing.app
Upload-Post
100% 100%
Image Optimisation
0% 0%
0% 0%
Social Media Tools
100% 100%
100% 100%
Image Editing
0% 0%
0% 0%
Social Media Scheduling
100% 100%

Questions & Answers

As answered by people managing Resizing.app and Upload-Post.

What makes your product unique?

Upload-Post's answer:

Upload-Post is the only API that lets you post to 10+ social platforms with a single endpoint. No need to integrate TikTok, Instagram, YouTube, and Facebook APIs separately — one call handles everything. We also offer true white-label: your users connect their accounts directly, so you never touch their credentials.

Why should a person choose your product over its competitors?

Upload-Post's answer:

  • One API, all platforms: Post to TikTok, Instagram, YouTube, Facebook, X, LinkedIn, Pinterest, and Threads without managing 8 different integrations
  • Developer-first: Clean REST API, webhooks, and native n8n/Zapier support
  • White-label ready: Let your users connect their own accounts — perfect for SaaS platforms
  • Reliable: We handle platform API changes, rate limits, and retries so you don't have to
  • Fair pricing: Start free, pay only for what you use

How would you describe the primary audience of your product?

Upload-Post's answer:

  • SaaS platforms adding social media publishing to their product
  • Marketing agencies managing multiple client accounts
  • Developers building social media automation tools
  • Content creators who want to post everywhere at once
  • No-code builders using n8n or Zapier for automation

What's the story behind your product?

Upload-Post's answer:

We were building a SaaS and needed to post to multiple social platforms. Integrating each API separately was painful — different auth flows, formats, rate limits, and constant breaking changes. So we built Upload-Post to solve it once. Now thousands of developers use it to skip the headache and ship faster.

User comments

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Alternatives to Resizing.app and Upload-Post

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