NNostr scheduler
Schedule Nostr notes to your relays
Nostr has no company to send your posts for you, so normally your client has to be open when you publish. Postoni is a Nostr scheduler that signs and sends your notes at the time you pick. The same draft can go to Bluesky, Mastodon and X.
- 7-day free trial
- No credit card
- Unlimited posts
Bloom Studio
@bloomstudio · now
Our autumn collection lands Friday. Twelve new glazes, all made by hand in our tiny studio.
Everything you can publish to Nostr
Pick the format in the composer. Postoni handles the upload and the timing.
- Text notes
- Notes with media links
- Reply threads
Built around how Nostr actually works
Published to five relays
Each note goes to nos.lol, relay.damus.io, relay.snort.social and two iris.to relays, so followers on most clients can see it.
Write as long as you like
There's no 280 or 300 character squeeze here. Use Nostr for the long version and trim it for other networks.
Replies stay threaded
Add follow-up boxes and Postoni posts them as replies to your note, so a longer thread stays connected.
How to schedule a Nostr post
Four steps, about two minutes the first time. After that it's write, tweak, schedule.
- 1
Get your hex private key
Export your private key in hex format from your Nostr client or key manager. Postoni needs it to sign notes for you.
- 2
Connect it to Postoni
Paste the hex key into the Nostr connection form. Postoni keeps it with your connection and uses it only to sign your scheduled notes.
- 3
Write and attach media
Write your note and attach images or video. Postoni adds the media as links at the end.
- 4
Schedule it
Pick a time. Postoni signs the note and sends it to the relays then.
Nostr scheduling FAQ
Does Postoni publish automatically to Nostr?
Yes. At the scheduled time Postoni signs the note with your key and publishes it to its relays. You don't need a client running.
Is there a Nostr character limit?
No hard limit. Postoni allows up to 100,000 characters per note, though some clients collapse very long notes.
What can't Postoni do on Nostr?
You can't choose your own relay list yet, and long-form articles, zaps and DMs aren't supported. Notes are sent to the fixed set of relays listed above.
Is it safe to give Postoni my private key?
Your key is what signs notes, so any scheduler needs it to post while you're away. Postoni uses it only for publishing your notes, but treat it like any secret you hand to a service. If you'd rather not share your main key, use a separate Nostr identity for scheduled posts, or self-host the open-source core.
Pairs well with Nostr
Most people post the same idea to a few networks. These are the ones that usually go with Nostr.
Bluesky scheduler
Schedule Bluesky posts and threads with up to 4 images, alt text and links, using an app password.
Mastodon scheduler
Schedule Mastodon posts and reply threads with images, video and alt text.
Lemmy scheduler
Schedule text, link and image posts to Lemmy communities on any instance, several at once.
Ready to put Nostr on autopilot?
Connect Nostr, write your first post and schedule it in two minutes. Free for 7 days, no card.
- Unlimited posts on every plan
- Cancel anytime
- Open-source core