Post it once.
It lands everywhere.
Stop pasting the same update into five apps. Write it in Klaxon, tick the networks you want, and send to X, Bluesky, Threads, TikTok, Instagram, Facebook and YouTube together — text, photos or video, all in one click.
Sign in with Twitch — follow to use Klaxon free.
How it works
Three steps, one post, every network
No more switching tabs and reformatting the same message over and over.
Connect your accounts
One-click connect Facebook, Instagram, Bluesky, Threads, TikTok and YouTube. Add X with your own API keys for full media support.
Write it once
Compose your post, attach up to four photos or a video, and pick which networks it should go to. Save it as a template to reuse later.
Send everywhere
Hit post. Klaxon fans it out to every network at once and shows you exactly what landed where.
Why it's better than copy-paste
Built for posting to everywhere, properly
Photos & video everywhere
Attach up to four images or a clip and Klaxon handles each network's format and size rules for you — no re-exporting per app.
Retry only what failed
If one network hiccups, the others still go. One tap re-sends just the failed ones — your successful posts are never duplicated.
Templates & variables
Save reusable posts and drop in live values like {game}, {title}, {date} that fill themselves in.
Post now or schedule
Send straight away, or line it up for later and let Klaxon fire it automatically while you're offline.
Auto-announce on Twitch
Go live and your whole audience hears about it across every network, automatically.
Your keys, encrypted
You connect your own accounts. Credentials are encrypted at rest and Klaxon only ever uses the official platform APIs.
Cross-posts to
Your whole lineup, one click
Facebook, Instagram, Bluesky, Threads, TikTok and YouTube connect in one click. X needs your own developer API keys for media and higher usage. Leaving X? See posting to Bluesky and X together →
Questions
Cross-posting, answered
How do I post to all my social media accounts at once?
Which social networks can I cross-post to?
What happens if a post fails on one network?
Can I cross-post photos and videos too?
Is Klaxon free to use?
One post. Every channel. Done.
Connect your accounts and send your next update everywhere at once.