
Buffer
Hootsuite
Ayrshare
Postproxy
Later
Postiz
Publer
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.

D3.js
Highcharts
AnyChart
ApexCharts
Chartist.js
Google Charts
Backbone.js
Easy, object oriented client side graphs for designers and developers.

Which is more popular?
Based on our record, Chart.js seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | upload-post.com | chartjs.org |
| Pricing | ||
| Platforms | — | |
| Company | Startup from Spain · 1 - 9 employees · 2025 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


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...
No description of Chart.js yet.
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
No Upload-Post videos yet. You could help us improve this page by suggesting one.
1.3: Graphing with Chart.js - Working With Data & APIs in JavaScript
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Upload-Post and Chart.js.
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.
Upload-Post's answer
Upload-Post's answer
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.
Share your experience with using Upload-Post and Chart.js. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of Upload-Post yet. Be the first one to post
Of the free libraries on this list, ECharts has the widest range of chart types available, second only to D3. Unlike D3, ECharts also ranks highly on the user-friendliness scale, although some users find ApexCharts...
Chart.js is a chart library that is available as a client-side JavaScript package. There are also derivatives for other frontend frameworks, like React, Vue, and Angular. It displays the chart on an HTML canvas element.
Chart.js is a simple yet quite flexible JavaScript library for data viz, popular among web designers and developers. It’s a great basic solution for those who don’t need lots of chart types and customization features...
Recommendations tracked on public social media and blogs since March 2021.


Tracking Upload-Post since Feb 2026.
Https://chartjs.org works well, but you have to call the update function yourself if you want to do some reactive updates. Source: over 5 years ago
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Award-winning JavaScript charting library & Qlik Sense extensions from a global leader in data visualization! Loved by thousands of happy customers, including over 75% of Fortune 500 companies & over half of the top 1000 software vendors worldwide.
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