One composer, three voices
Write one description, then tweak it where it matters: an Instagram caption, a shorter Threads text with its topic tag, a TikTok title and description.
Instagram · Threads · TikTok
NextDeck schedules your photo posts to Instagram, Threads and TikTok from a single composer, with the right caption, hashtags and settings for each one.
Sign in with Apple or Google. No passwords to remember.
Features
Write one description, then tweak it where it matters: an Instagram caption, a shorter Threads text with its topic tag, a TikTok title and description.
Drop in your photos and put them in order. Up to 10 on Instagram, 20 on Threads and 35 on TikTok. They're converted to JPEG for you.
Add hashtags once. They go on Instagram and TikTok, skip any already in your text, and stay off Threads, where they don't belong.
Pick a time and walk away. Every platform publishes on its own, so one hiccup never holds up the others.
Live character counts and checks for every platform's limits, so you find out now, not at 9:30 tomorrow. If something does fail, retry just that platform.
Post straight to TikTok, or send it to your TikTok inbox as a draft and add a trending sound before it goes live.
How it works
Link Instagram, Threads and TikTok with each platform's own login. NextDeck never sees your passwords.
Add photos, write your text, choose where it goes. Preview exactly what each platform will get.
Hit schedule. Your post goes out on time, and you get a link to each live post.
For developers and AI agents
NextDeck has a REST API and a built-in MCP server. Hand Claude Code, or any agent that speaks MCP, an API key and it can upload photos, draft posts, check them against every platform's rules and schedule them.
$ claude mcp add --transport http nextdeck \ https://nextdeck.app/mcp \ --header "Authorization: Bearer nd_…" > Schedule the three new screenshots for Tuesday 9:30 on Instagram, Threads and TikTok. ● upload_media ×3 ● create_post ● validate_post no problems ● schedule_post Tue 9:30 AM
Encrypted tokens. Platform logins are encrypted at rest and used only to publish what you schedule.
No tracking. No advertising cookies, no third-party analytics.
Not training data. We don't sell your data or use your posts to train AI models.