Schedule Reddit posts. The platform limit is the easy part.
Reddit gives you more room than almost anywhere else, and that is not what determines whether your post does well. Each subreddit has its own rules about self-promotion, formatting, and flair, and none of them are visible in an API limit. Scheduling helps with timing; it cannot help with reading the room.
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Being honest about what scheduling does here
On most platforms, a post that clears the character limit and has valid media will publish and stay up. Reddit is not like that.
Every subreddit is moderated by people with their own rules, and those rules routinely include things no API can tell you about: a minimum account age, a cap on how often you may link your own work, a required flair, a ban on link posts on certain days. A scheduled post that violates one is removed after it publishes.
So what Postonus genuinely gives you on Reddit is timing and record-keeping. It cannot give you judgement about a community, and a tool that implied otherwise would be selling you something.
Room to write
Reddit's allowances are near the top of the list above, for both text and media. That is a real difference from the short-form platforms — a Reddit post can be the long version of an argument you compressed elsewhere.
Which is also the strategic point. If you are adapting content for Reddit, the direction is usually expansion rather than compression: more context, more detail, fewer marketing beats.
Do not put a LinkedIn post on Reddit unchanged. The register that reads as professional on LinkedIn reads as promotional on Reddit, and promotional is what gets removed.
Where it fits in a multi-platform post
Reddit is usually a channel you post to deliberately rather than as part of a broadcast. If you do include it in a multi-platform post, override its body — the shared version written for everywhere else will be the wrong register. See multi-platform publishing for how overrides work.
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Limits
What Reddit allows in one post. The composer enforces these while you type.
- Characters per post
- 40,000
- Media per post
- 20
- Media types
- image, gif, video
- First comment
- Not supported by the platform
Read from the same rules the composer and the publish workers use, so this table cannot drift from what actually publishes.
Questions
Frequently asked questions Everything the first evaluation usually needs.
- Can I schedule posts to a subreddit?
Yes, through Reddit’s official API with a permission you grant. The post publishes at the scheduled time like any other channel.
- Will scheduling get my post removed?
Scheduling itself is not against Reddit’s rules. What gets posts removed is subreddit-level policy — self-promotion limits, karma thresholds, required flair, or formatting rules. Read the sidebar before you queue anything.
- How much can a Reddit post contain?
A lot — see the table above, generated from the rules the publisher enforces. Reddit has one of the highest character and media allowances of any platform here.
- Should I cross-post the same thing I put on LinkedIn?
Almost never verbatim. Reddit reacts badly to copy that reads like marketing, and a LinkedIn post reads exactly like marketing. Rewrite it as something a person would actually say.
- What happens if a subreddit removes my post?
Removal happens on Reddit’s side after publishing, so Postonus reports the publish as successful. The activity feed records what went out and when, which is what you need to check against.
Keep reading
- Multi-platform publishingWrite once and publish to 16 platforms, with per-channel overrides where the platforms differ. Limits are enforced as you type, from the rules workers use.Read
- Activity logOne feed of what happened: every publish, every failure with the platform’s own error, and a one-click retry, for when a client asks about last Tuesday.Read
- Discord schedulerSchedule announcements to a Discord channel from the same calendar as your public social posts, so a community update is not a manual task at a fixed hour.Read