The Reddit video ads that get watched look like native posts, make sense with the sound off and show their point in the first two seconds. They are autoplaying MP4 or MOV promoted posts that run in Reddit's home feeds, community feeds and comment threads. The specs are simple. The audience is harder, because Redditors scroll past anything that looks like an ad made for another platform.
Reddit started as a social news website, news aggregator and forum, and people still use it that way. They come to read, compare and argue inside topic communities. Brands entertaining them is not why they are there, and that changes what a video has to do. This guide covers formats, placements, specs, creative patterns and a testing workflow for Reddit video ads, based on Reddit Business Help Center guidance as of October 2026.
Key takeaways
- Reddit's official video specs call for MP4 or MOV files up to 1 GB, in 1:1 or 16:9, with standard video ads running up to 30 seconds.
- Sound is optional on Reddit video ads, so every video needs burned-in captions and an opening frame that works on mute.
- Reddit video ads can run in main feeds, community feeds, conversation threads and premium placements such as Reddit First View.
- Video built for a specific subreddit should use that community's vocabulary and problems, while broad-targeting cuts should lead with a universal problem.
- The comment section under a Reddit video ad shapes how authentic it looks, so plan who replies and what they say before launch.
Reddit Ad Placements and Video Formats
Reddit video ads appear in-feed on desktop and mobile, in subreddit feeds, inside conversation threads, and in premium and takeover units. Reddit's ad types documentation lists these Reddit ad placements:
- Main feeds: Home and Popular, on desktop and mobile.
- Community feeds: the subreddits your targeting matches.
- Conversation threads: inside comment sections, between the original post and the first comment.
- Reddit First View: a premium placement on Home or Popular.
- Takeovers and category placements: high-impact units within targeted interest areas.
Each placement pairs with a format, and each format suits a different job for video:
| Format | What it is | Best use for video |
|---|---|---|
| Feed video ad | Standard autoplaying promoted post | Hook-led awareness and consideration |
| Conversation ad | Promoted post placed inside a comment thread | Topic-matched demos and expert positioning |
| Free-form ad | Post-style unit mixing text, media and links | Stories, tutorials or long-context posts with video embedded |
| Carousel ad | Swipeable sequence of cards | Product ranges and step sequences |
| First View / takeover | Premium, high-impact unit | Launches and tentpole moments |
Reddit conversation ads
Reddit conversation ads sit inside comment threads, so the reader is already deep in a topic when the video starts. Use them for lead generation, expert positioning, onboarding or feedback with a skeptical, highly involved audience. Make the video answer the kind of question the thread is asking, and leave the brand promise out.
Reddit free-form ads
Reddit free-form ads combine custom text, images, video, links and calls to action in one post-style unit. Standard ads are template-driven and quicker to deploy across placements. Free-form works best when the video needs written context around it, such as a teardown, a changelog or a "here's how we built this" post. Good Reddit freeform ad examples read like a useful post that happens to be sponsored.
Reddit Video Ad Specs
Reddit's video ad specs require MP4 or MOV files of up to 1 GB, ideally 1080×1080 (1:1) or 1920×1080 (16:9), with standard video ads running up to 30 seconds. The table below follows Reddit's Business Help Center video specification and ad unit pages.
| Spec | Requirement | Practical note |
|---|---|---|
| File format | MP4 or MOV | Export H.264 MP4 to avoid re-encoding issues |
| Max file size | 1 GB | 30-second 1080p files sit far below this |
| Recommended resolution | 1080×1080 or 1920×1080 | 1:1 takes more feed height on mobile |
| Aspect ratio | 1:1 or 16:9 | Reframe 9:16 TikTok cuts instead of letterboxing them |
| Minimum dimensions | 640×360 for 16:9 | Treat it as the minimum and aim higher |
| Length | Up to 30 seconds (standard) | Some third-party guides list longer limits; Reddit's own docs take priority |
| Bitrate | 6 Mbps or higher recommended | Low bitrate turns on-screen text blocky |
| Encoding | H.264 recommended | Standard export preset in Premiere, Resolve or CapCut |
| Audio | AAC or MP3, up to 320 kbps | Sound is optional |
| Playback | Typically loops | Make the last frame flow back into the first |
| Captions | Not required | Burn them in, because most people see the video on muted autoplay |
| Thumbnail and headline | Set in Ads Manager | Check the current Ad Unit Specifications page for character limits |
For broader Reddit ad specs, including Reddit static ad specs, Reddit carousel ad specs, Reddit conversation ad specs and Reddit category takeover specs, use the Ad Unit Specifications page in Reddit's Business Help Center. Reddit keeps it more current than third-party summaries.
Length by objective (within the 30-second limit): 6–10 seconds for awareness and remarketing, 15–20 seconds for consumer product education and app installs, and the full 30 seconds for SaaS demos where one workflow needs to finish on screen.
What Gets Watched in Reddit Video Ads
Redditors watch videos that are novel, honest, specific and useful, and they skip anything that sounds like ad copy. The patterns below raise hold rate.
Hook in the first two seconds
Open on the problem or the result, and keep the logo out of the opening. A security tool might open on a terminal flagging an exposed S3 bucket. A consumer app might open on the exact error message users complain about. Native-looking intros help: a screen recording, a hand-held product shot or a plain text card that reads like a post title.
Built for muted autoplay
Burn in captions, keep two lines or fewer on screen, and show proof: real numbers in your product, before-and-after states or a timer. If the video needs audio to make sense, it fails in the feed.
Polished vs. lo-fi
Lo-fi tends to win in hobby, gaming and technical communities, where polish signals "ad." Polished production fits First View, takeovers and consumer launches, where people expect scale. What fails is generic polish.
What Redditors ignore or downvote
- Brand logos and taglines in the first frame
- Thumbnails that promise something the video doesn't show
- Recycled 9:16 TikTok videos with no Reddit context
- Headlines like "Revolutionize your workflow"
- Videos that only work with sound on
Adapting Video to Subreddit and Broad Targeting
The same footage needs different hooks and headlines depending on whether it runs in a named community or across broad interests, because the reader's context differs. Reddit also differs from other video platforms in how people arrive at the ad:
| Platform | Audience intent | Creative style | Sound dependency | Targeting logic |
|---|---|---|---|---|
| Research, discussion, comparison | Native, specific, self-aware | Low: plan for mute | Communities, interests, conversations | |
| TikTok | Entertainment | Creator-led, trend-driven | High | Algorithmic interest graph |
| Social browsing | Aesthetic, vertical | Medium | Interests and lookalikes | |
| YouTube | Search and lean-back viewing | Longer narrative | High | Search, topics, channels |
| Meta (Facebook) | Social feed | Direct response | Medium | Behavioral and lookalike audiences |
One video, three cuts
- Subreddit cut: use the community's terms, for example "IAM drift" in r/aws, and a headline that reads like a post, such as "We tracked how often our IAM policies drifted. Here's the dashboard."
- Broad cut: lead with a universal problem ("Your cloud bill doubled and nobody knows why"), add one sentence of context on screen and keep the jargon out.
- Repurposed TikTok or Meta cut: reframe to 1:1, replace trending audio with captions and swap the creator intro for the product moment.
For bid strategy and audience setup alongside creative, see our guide to Reddit targeting, creative and bidding.
Comments are part of the ad
The thread under a video ad tells the next viewer whether the brand is credible. Have a named team member reply to real questions within hours, answer criticism plainly and never post from fake accounts. A thoughtful reply to a hostile comment often does more for trust than the video itself.
Reddit Ad Examples by Objective
Effective Reddit ad examples look like relatable, well-targeted posts that invite discussion. The examples below are illustrative concepts by objective, not real campaigns. For real campaigns, see our breakdown of campaigns that won skeptics over.
Awareness: consumer security
Opening frame: a phone showing a fake delivery text, captioned "This got past my mom." Format: 8-second 1:1 feed video. Why it works: people recognize the scam at once. Improve: test a version with the brand name in the headline instead of the video.
SaaS demo: cloud security
Opening frame: an alert firing on a misconfigured bucket. Format: 30-second 16:9 conversation ad in DevOps threads. Why it works: it shows the full workflow without voiceover. Improve: add a free-form version with written setup steps.
Consumer product education
Opening frame: the product failing a common task, then the fix. Format: 15-second tutorial. Why it works: it is honest about the problem. Improve: pin a comment with the specs people will ask about.
App install: AI software
Opening frame: a raw screen recording of a prompt and its output. Format: 12-second 1:1 feed video. Why it works: it shows real output with no mockups. Improve: show the free-tier limits upfront.
Remarketing and event promotion
Opening frame: "You looked at the pricing page. Here's what the $0 plan actually includes." Format: 6-second loop. Why it works: it admits it is a retargeting ad. Improve: for events, swap in a countdown and one speaker clip.
Where do you find more inspiration before launch? The Reddit Ads Inspiration Library, available through Ads Manager and the Business Help Center, collects curated, real-world Reddit ads you can filter by format before you brief production.
How Tellr Runs Reddit Video Ads Inside One Program
Tellr runs Reddit paid creative as part of one governed earned-visibility program, so video ads draw on the same subreddit research as organic replies and content. Its paid media product pairs category ad intelligence with ready-to-run creative, and a senior team manages the work on Tellr's own platform. The program covers:
- Subreddit mapping that decides which communities get a dedicated cut
- A daily thread radar that surfaces the language buyers use, for hooks and headlines
- Guideline-checked replies behind an approval gate for ad comment threads
- Category ad intelligence on what competitors run
- Answer-visibility tracking that ties Reddit presence to Google and AI citations
Tellr is a managed program priced for enterprise marketing teams. A small team testing its first Reddit video is better served by Ads Manager and the Inspiration Library.
A Build-and-Test Checklist for Reddit Video Ads
A repeatable workflow for Reddit video plans variants upfront, produces for mute and 1:1, and judges results on hold rate and downstream actions as well as views.
- Map target subreddits and collect the exact phrases users post.
- Write three hook variants: problem-first, result-first and self-aware.
- Produce 1:1 and 16:9 masters at 6 Mbps or higher, H.264, with captions burned in.
- Write two caption styles (verbatim and summary) and two post-style headlines.
- Test two thumbnails: a product frame and a text-card frame.
- Match the landing page's first screen to the video's final frame.
- Assign comment owners and approved answers before launch.
- Rotate creative when hold rate drops, not on a fixed calendar.
Metrics that matter
- Thumb-stop rate: 2-second views divided by impressions, which shows hook strength.
- View rate and watch time: how long people stay past the hook.
- Completion rate: most useful for 6–15 second cuts.
- CTR, CPC and conversions: compare them against CTR, CPC and CPM benchmarks for your industry.
- Assisted engagement: upvotes, comment quality and saves, which signal community acceptance.
The specs take an afternoon. The work that decides results happens in the first two seconds, the muted read and the comment thread. Teams that treat Reddit video ads as community posts with a budget, instead of resized TikTok cuts, are the ones that get watched.
FAQ
What are Reddit video ad specs?
Reddit video ads use MP4 or MOV files up to 1 GB. Recommended sizes are 1080×1080 for 1:1 or 1920×1080 for 16:9, with standard video ads running up to 30 seconds. H.264 encoding and 6 Mbps or higher bitrate are recommended.
Where can Reddit video ads appear?
Reddit video ads can appear in Home and Popular feeds, subreddit community feeds, conversation threads, and premium placements such as Reddit First View, takeovers and category placements.
Do Reddit video ads need sound?
No. Sound is optional, and muted autoplay is the default experience for many users. That is why Reddit video ads should use burned-in captions, minimal on-screen text and an opening frame that makes sense without audio.
What makes Reddit video ads more likely to get watched?
The ads that get watched usually show the problem or result in the first two seconds, feel native to Reddit, work on mute and use specific, honest language. Redditors tend to ignore logo-first intros, generic ad copy and recycled vertical videos made for other platforms.
Why are comments part of a Reddit video ad strategy?
The comment thread shapes how credible and authentic a Reddit video ad looks to the next viewer. Brands should plan who replies before launch, answer criticism plainly and avoid fake engagement, because thoughtful replies can build more trust than the video itself.