Online Image Editor & Photo Editor
Auto-Fix Images for Publishing - Resize, Compress & Convert
Use Fix images in the channel preview to repair supported size, format and aspect-ratio issues. Postly checks the result again and explains when you need to replace or manually export an image.
- Auto-resizing presets for Instagram, X (Twitter), LinkedIn, TikTok, YouTube & Facebook
- Compression to reduce file size; review the effect on image quality
- Format conversion: Supported decodable images converted to JPEG; export unsupported source formats first
- Review repaired images in each channel preview
Auto-Resizing Presets
Resize or pad supported images to meet the selected publishing requirements. Tiny originals need replacing.
Format Conversion
Convert supported images to JPEG for publishing. JPEG does not retain transparency; review the result.
Smart Compression
Reduce file size while preserving detail. Faster uploads and sharper visuals across devices.
What You Can Do With This Image Editor
- Resize images online for any social media platform
- Compress photos and review the tradeoff between size and quality
- Convert supported PNG or WebP images to JPEG; export RAW or HEIF in your image editor first
- Batch-prepare campaign visuals with consistent specs
- Review each destination preview before publishing
- Standardize aspect ratios (1:1, 4:5, 16:9, 9:16)
- Automate platform-specific exports and naming
- Ship polished creatives faster with fewer edits
Frequently Asked Questions
How does the image editor handle platform requirements?
Choose Fix images in the channel preview. Supported images can be resized, padded, compressed or converted to JPEG, then checked again. Review the result before publishing.
What if my image is the wrong format?
Supported decodable images can be converted to JPEG. If Postly cannot read or repair a file, export a compatible JPEG or PNG in your image editor and replace it.
Can I review changes before publishing?
Yes. Review the repaired image in each channel preview. Small originals may need replacing, and JPEG conversion removes transparency.
Does it support professional formats like RAW or HEIF?
Export RAW or HEIF/HEIC to JPEG or PNG in your image editor first. These source formats are not guaranteed to decode in Postly.
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