Free · No signup · Runs in your browser

Free HTML5 Backup JPG Generator

Turn your HTML5 banner ZIPs into static backup images — auto-sized, captured from the ad's final resting frame (the CTA/logo hold) and optimised toward CM360's 40KB target. Drop in a whole set and preview every result in full.

Launch the generator How it works
Your files never leave your browser — safe for unreleased campaigns.
Why you need it

No backup image? The placement won't serve.

Every HTML5 unit needs a compliant fallback image, or ad servers reject it. Doing that by hand across a whole size set is exactly the tedious job this tool removes.

Auto-sized per banner

Detects each unit's dimensions and captures the ad's final resting frame (the CTA/logo hold) automatically.

40KB target

Optimises JPG compression toward CM360's weight limit, with a clear compression summary for every unit.

Whole sets at once

Drop in multiple ZIPs and get every backup — download individually or all together as a ZIP.

How it works

Drop in ZIPs, get backups.

1

Upload your ZIPs

Add one or more HTML5 banner ZIPs. Everything is processed locally in your browser.

2

Resting frame captured

The tool detects each size, captures the ad's final resting frame (the CTA/logo hold) and compresses it toward the weight limit.

3

Download

Preview every result in full. Free downloads are half-dimension JPGs (one system-picked size full-resolution with 3+ banners); a free login unlocks full-dimension backups on every unit.

Why use it

From a studio that ships backups daily.

Private by design

Rendering and compression happen in-browser — your creative never leaves your machine.

Set, not single

Built for real production volume — batch a full campaign's units in one pass.

Spec-correct

Output sized and weighted the way CM360 expects, by people who traffic ads every day.

Want the whole set built?

We deliver HTML5 banners with backups as standard.

Hand off the production entirely — trafficking-ready units, backups included, white-label, with a free first sample.

DV360 banner production
FAQ

Quick answers.

What is a backup image / backup JPG?
It's the static fallback an ad server shows when the HTML5 version can't run. Campaign Manager 360 requires every HTML5 unit to ship with a correctly-sized, weight-compliant backup image — usually under 40KB.
Is this tool free?
Yes — free to use with no signup, and you can preview every backup in full. Free downloads come out as half-dimension JPGs (one system-picked size downloads full-resolution once you've uploaded 3+ banners); a free login unlocks full-dimension, CM360-correct backups on every banner.
Do my files upload anywhere?
No. It captures the ad's final resting frame (the CTA/logo hold) and compresses the JPG entirely in your browser — your creative never leaves your machine.
How does it keep the file under 40KB?
It captures the ad's final resting frame (the CTA/logo hold) and optimises the JPG compression to target CM360's weight limit, showing you a compression summary for each unit — under 40KB is a best-effort target, not a guarantee, and a heavier result can occasionally render. Full-dimension output (Premium or a free login) is what makes the backup CM360-correct.
Can you produce the whole banner set, backups included?
Yes — we build trafficking-ready HTML5 banners with backups handled as standard. See DV360 banner production or send a brief for a free sample.
Do these tools use credits or tokens?
No — never. Every tool is free to use with sample or daily limits, and PRO is a flat $25/month ($199/year) for unlimited use of all 25+ tools: no credit packs, no top-ups, no per-use fees. Many comparable tools bill per credit (remove.bg, CloudConvert, AdCreative.ai) — here one flat subscription covers everything. See tools pricing.

Generate your backups now — free.

No signup, no upload — preview every backup in full. Free downloads are half-dimension JPGs; a free login unlocks full-dimension, CM360-correct backups on every unit. Or hand the whole build to us.

Launch the generator Get a free sample build