Glossary
Safe margins: keeping titles readable on every screen
Edges of the frame get cropped by old TVs, covered by app interfaces, and sliced by platform reframing. Safe margins are the guides that keep your titles and action clear of all that. This guide explains title-safe and action-safe areas and how to design inside them.
From the Mellius product team · Updated September 28, 2026
Conspiracy theorists, you may hate this
AI Director
›
Just type what you need
- ›Remove all silent parts
- ›Add bold kinetic captions
- ›Only have Bill Ackman speaking
- ›Cut to highlights only
- ›Add cinematic transitions
- ›Match cuts to the beat
The short answer
Video safe margins are guides showing where titles and important action stay visible on every screen. Title-safe, the inner 80 percent, marks where text never gets cropped; action-safe, the inner 90 percent, marks where key movement stays in frame. Older TVs overscan and crop edges, and social apps cover edges with interface — so keep essentials inside the guides.
Text lives inside title-safe
All captions, titles, and graphics stay within the inner 80 percent so no letter is ever clipped on any display.
Key action lives inside action-safe
Important movement and subjects stay within the inner 90 percent so reframing and overscan never cut the moment.
Edges stay clean
Boom mics, lights, and crew near frame edges get caught by the guides early, before they embarrass the export.
Title-safe vs. action-safe: the two guides
Title-safe marks the inner 80 percent of the frame — the zone guaranteed visible even on the most aggressive old CRT television with overscan. Any text, logo, or graphic placed here survives every display. Broadcast designers treat its boundary as a hard wall: nothing readable crosses it, no matter how empty the middle feels.
Action-safe marks the inner 90 percent: the zone where essential movement stays visible. A subject near the edge may survive modern screens yet vanish on overscanning sets or under social interface overlays. Framing key action inside this guide means the moment reads everywhere, while the outer ten percent becomes a safety buffer rather than storytelling space.
Why safe margins still matter in the phone era
Overscan is fading, but new edge-eaters replaced it. Social apps plaster usernames, captions, like buttons, and progress bars over the frame edges; platforms auto-crop horizontal video into vertical slots; round-cornered phones and notches bite the corners. A title safe on your monitor can hide under TikTok's interface on a viewer's phone.
Safe margins also protect multi-platform delivery. One master edit often ships to YouTube, square feeds, and vertical stories — each reframing the picture differently. Content composed inside safe guides survives every crop, while edge-dependent compositions need per-platform fixes. Checking guides once beats repairing three exports.
Mistakes that break safe margins
The classic error is designing full-bleed: spreading lower thirds, subtitles, or logos to the very edge because it looks bold on a large monitor. It looks broken everywhere else. Keep a title-safe overlay on while placing graphics, and pull every element inside before calling the layout done.
The subtler mistake is trusting one screen. Laptop previews, phone checks, and TV playback each hide different edges, and platform interfaces update constantly. Verify graphics against current interface overlays for each destination, and re-check safe areas after any reframe or aspect-ratio change rather than assuming they carried over.
A practical sequence
Put it into practice
- 01
Turn on safe-area overlays
Enable title-safe and action-safe guides in your editor or viewer before placing a single graphic. If your tool lacks them, use a rule of thirds grid plus a ten percent mental border.
- 02
Compose text and action inside the guides
Keep every readable element within title-safe and every key subject within action-safe. Treat anything outside as expendable decoration, never information.
- 03
Preview on real destinations
Check the export on a phone inside the actual apps and, for broadcast, on a real TV. Adjust any graphic that collides with interfaces or overscan before delivery.
Frequently asked questions
What are the exact safe margin percentages?
Traditionally action-safe is the inner 90 percent of the frame and title-safe is the inner 80 percent, each centered. Some broadcasters publish house variations, so check delivery specs for television work. For social video, treat platform interface overlays as additional custom margins on top of these.
Do I still need safe margins for YouTube?
Yes, though the reasons shifted from overscan to interfaces and reframing. End screens, cards, embeds, and mobile apps all cover or crop edges. Keeping titles inside title-safe guarantees they read on televisions, phones, and embedded players alike.
Where are safe margin guides in my editor?
Most editors offer safe-area overlays in the program monitor settings or view options, often alongside grids and guides. Turn them on during graphics passes and title placement. If your editor lacks them, overlay a title-safe template image on a top track as a temporary guide.
Continue reading
Primary sources
Product capabilities change. These official references support the comparisons above.
Describe the edit. Keep the timeline.
Mellius turns conversational direction into cuts, captions, graphics, motion, color, and sound you can still inspect and change.
Start editing free