About Onmark
A business pays for a logo and a brand guide, then hands day-to-day design to whoever is free: the social media manager, a sales rep, the founder at midnight, or a freelancer who has never seen the guide. Onmark exists to make the guide do the work.
Principles
Rules, not prompts
Onmark measures what can be measured with plain code, and uses AI only for the judgement calls rules can’t make, with the reason shown.
Designer-made templates
Generated designs fill layouts made by a working brand designer, so results are consistent by construction.
Built for how local businesses post
Phones first, with the formats businesses actually use, like flyers, WhatsApp statuses and price lists.
Your team keeps its tools
Onmark checks designs from Canva, a freelancer or a phone, so nobody has to switch software.
Team
Edwin Igwebuike
Founder, brand and marketing designer
Edwin Igwebuike is a brand and marketing designer and the founder of Onmark. Over five years of remote work with more than 20 clients in the UK, US, UAE, Canada, Croatia, Egypt, Georgia and Nigeria, he has written brand guidelines and kept brands consistent across print, social and packaging.
What’s live
Checked 4 November 2026.
- LiveBrand ProfileYour guide, turned into rules you review.
- LiveCreateOn-brand posts, flyers and slides from a sentence.
- LiveCheckA Brand Score and a list of fixes for any design.
- LiveApprove and trackSign-off links and a dashboard of what went out.
Company details
- Operator
- Onmark is operated by Edwin Igwebuike from Enugu, Nigeria.
See how on-brand your designs are
Send ten recent designs. You’ll get a Brand Score for each one and a marked-up list of what to fix.