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Best image format for Instagram in 2026
Discover the best image format, size and resolution for posting on Instagram with maximum quality.
What format does Instagram accept?
Instagram accepts JPG, PNG and HEIC formats for photos. For videos, it accepts MP4 and MOV. In practice, JPG is the most recommended format for most photos, as it offers good quality with a smaller file size.
Ideal sizes by post type
| Post type | Ideal resolution | Ratio | Max size |
|---|---|---|---|
| Square feed | 1080 × 1080 px | 1:1 | 8 MB |
| Landscape feed | 1080 × 566 px | 1.91:1 | 8 MB |
| Portrait feed | 1080 × 1350 px | 4:5 | 8 MB |
| Stories & Reels | 1080 × 1920 px | 9:16 | 30 MB |
💡 Tip: Instagram automatically recompresses images wider than 1080px. There's no point sending 4K images — they'll be reduced anyway, and the original file only consumes more data.
JPG vs PNG on Instagram — which to use?
JPG is the best choice for most photos because it produces smaller files that Instagram compresses less aggressively. PNG may appear sharper for logos and text art, but Instagram recompresses PNG more heavily, potentially resulting in worse quality than JPG.
How to post on Instagram with maximum quality
- Export the image as JPG at 85-90% quality
- Use a resolution of 1080px wide (no more)
- Use sRGB color space (not Adobe RGB or P3)
- Avoid double filtering — apply all effects before exporting
- Post via the app, not the browser (better compression)