Best AI Tools for Making LINE Stickers in 2026
LINE stickers are their own craft: fixed sizes, transparent backgrounds, and characters that need to stay consistent across a whole pack. These are the AI tools that actually understand those constraints — not just generic image makers.
評価の基準
- LINE-ready output — correct dimensions, transparency, and file format
- Character consistency across all stickers in a pack
- How well it captures a real pet, person, or original character
- Speed from idea to a finished, uploadable pack
SeishunAI (ShiiruAI)
イチオシTurn your pet, yourself, or your friends into a custom LINE sticker pack.
Free to start
おすすめ用途: Personal, expressive LINE sticker packs
長所
- Purpose-built for LINE — exports in the exact size and format LINE requires
- Generates a full 8-sticker pack from a single photo, with consistent characters across poses
- No design skills needed — pick a concept, upload a photo, done
短所
- Focused on stickers, so not a general-purpose image editor
- App is rolling out by region
Midjourney
Beautiful images, but you'll do the sticker prep yourself.
From $10/mo
おすすめ用途: One-off sticker art you'll edit by hand
長所
- Gorgeous, stylized results
- Great for original characters
短所
- No transparency or LINE sizing — needs manual cleanup
- Hard to keep a character consistent across a pack
Adobe Express
Design tool with AI generate + background removal.
Free / from $10/mo
おすすめ用途: DIY sticker design and cleanup
長所
- One-click background removal
- Precise sizing and export control
- Free tier is usable
短所
- You assemble the pack manually
- AI character consistency is limited
Picsart
Mobile-first editor with an AI sticker maker.
Free / from $5/mo
おすすめ用途: Quick single stickers on your phone
長所
- Fast on mobile
- Big library of effects
- Auto cutout
短所
- Not tailored to LINE's spec
- Ads and upsells on the free tier
Canva
Templates and Magic tools for sticker sheets.
Free / $15/mo Pro
おすすめ用途: Template-based sticker sets
長所
- Sticker templates to start from
- Background remover (Pro)
- Easy to learn
短所
- No LINE-specific export flow
- Consistency is on you
結論
General image tools can make a pretty picture, but a LINE sticker pack lives or dies on consistency and correct formatting. A purpose-built generator saves hours of manual cutting, resizing, and re-drawing. SeishunAI is our top pick precisely because it produces a complete, LINE-ready pack with the same character across every pose.
よくある質問
Can I make LINE stickers with AI?
Yes. With a purpose-built tool like SeishunAI you can upload a photo of your pet or yourself and get a full 8-sticker pack, already sized and formatted for LINE. General image tools work too but require manual editing.
What size do LINE stickers need to be?
LINE main stickers are 370×320 px (W×H) with a transparent background, plus a main image and tab image. Tools built for LINE handle this automatically so you don't have to resize anything.
Do I need to draw to make a sticker pack?
No. AI sticker generators create the artwork for you from a photo or a text description — you just choose the concept and expressions.
How much does it cost to make LINE stickers with AI?
SeishunAI is free to start. Most alternatives have free tiers for basic use, with paid plans for higher limits and commercial rights.