Help
Guides with pictures
Short, step-by-step guides for the parts of nostr.build that do the most. Each one shows every button on a real screen.
Your library
Upload from a phone or computer, sort files into folders, copy a link to share, move and delete files.
Read the guide
Share on Nostr
Post a file with a note of your own, share several at once, and see or take down what you posted.
Read the guide
Signing in and your accounts
Sign in with a password, your Nostr key or a code, reset a password, and switch between accounts.
Read the guide
Plans and paying
Pick a plan, pay with Bitcoin, Lightning or a card, then renew, upgrade or move to a smaller plan.
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Your Blossom address
Claim a short name.blossom.band address, point your Nostr apps at it, and manage the media linked to it.
Read the guide
Your relay
Verify your key, import your old notes, add the relay to your apps, and see or download what's stored.
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Connect an AI agent
Give an AI agent access with a token, by letting the app sign in, or with a connection code; pick what it may do, and revoke it.
Read the guide
Back up your media
Download a copy of your media: pick what goes in, wait for the archives, and download them.
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Read books and PDFs
Read your EPUB books and PDFs: turn pages, change the look, pick up where you left off, read offline.
Read the guide
See how your media is viewed
Requests, visitors and data served for your account and each file, where they come from, and what each plan shows.
Read the guide
Get help
Open a support ticket, add screenshots, follow the replies, and reopen a ticket if the problem comes back.
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When something goes wrong
What the error messages mean and what to do: uploads, storage, the editor, signing in, payments, and pages that won't load.
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Make pictures with AI Studio
Make and change pictures with AI: pick a model, write a prompt, start from your own pictures, and see what it costs.
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Image editor
Crop, brighten, add text and stickers, make a meme, or hide something private before you share a photo.
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Video and GIF editor
Trim a clip, cut out a part, add captions that come and go, and choose the thumbnail people see first.
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Make your own GIFs
Turn a short video into a GIF or WebP with a caption or a sticker, keep it small, and share it or give it to the GIF library.
Read the guideIn depth
One part of the editor at a time, with everything it can do.
Crop, rotate and resize
Crop to a shape, straighten, zoom, turn, mirror, and set an exact size in pixels.
Light and colour
What each Finetune setting does, every filter, and quick fixes for dark or dull photos.
Draw and write
Freehand, arrows, boxes, text and meme text in any colour, and how to change or remove them.
Hide and finish
Blur private details, pick and adjust a frame, and put a colour behind a see-through picture.
Moving stickers and captions
Every animation, captions that come and go on time, and GIFs or videos playing inside your video.
Stickers
Emoji, markers, Nostr and Bitcoin art or your own pictures, and how to place, size and fade them.
Trim, split and sound
Shorten a video, cut parts out of the middle, play it back, and what happens to the sound and to GIFs.