
jello
JSON Crack
jq
JSON Editor Online
JSON to CSV Online
json-log-viewer
Boop
Command-line JSON processing tool

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.

Which is more popular?
Based on our record, fx seems to be more popular. It has been mentioned 21 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | github.com | upload-post.com |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from Spain · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


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


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


No analysis of fx yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Suzuki FX | Suzuki Alto First Generation: Owner Review: Price, Specs & Features | PakWheels
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing fx and Upload-Post.
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 fx and Upload-Post. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


I think there is a name clash here, I like fx the json viewer https://github.com/antonmedv/fx (20.6k star on gh). - Source: Hacker News / about 2 months ago
Fx improves this with an interactive JSON processor made for developers. It combines viewing capabilities with powerful transformation functions that make complex data manipulation simple. - Source: dev.to / over 1 year ago
Coincidentally, yesterday I decided I needed a JSON TUI and landed on fx (https://github.com/antonmedv/fx), which seems to have come out of the Wave terminal project and looks quite similar... - Source: Hacker News / about 2 years ago
Tracking Upload-Post since Feb 2026.
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