How to Compress an Image to 30KB (Free, Browser-Based, 2026)
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Quick Answer
To compress an image to 30KB: resize to 350×450px, output as JPG at quality 50–55. A typical portrait photo at those dimensions and quality 52 lands at 25–35KB. SSC exam portals accept up to 50KB but recommend 30KB; IBPS Clerk photo requirements are 20–50KB. Staying at 30KB gives you a safe buffer under any cap.
Step-by-step
- 1
Open FileCurve Image Compressor and upload your photo (JPG, PNG, HEIC all supported).
- 2
Resize width to 350px (height auto-adjusts). For SSC, the standard is 3.5cm × 4.5cm which maps to ~350×450px at 100dpi.
- 3
Set output format to JPG.
- 4
Set quality to 52. For a standard portrait this produces 25–38KB.
- 5
If above 30KB, drop quality to 48 or resize to 300px wide.
- 6
Download and verify the file size in your OS file manager.
Expected output
Format
JPG, 350×450px
Quality setting
JPG quality 48–55
Estimated size
25–38KB for a portrait photo
Why you might need this
- →SSC CGL, CHSL, MTS photo uploads — portals typically require 20–50KB, 30KB is safest
- →IBPS Clerk and PO exam photo submission — 20–50KB requirement
- →RRB NTPC and Group D exam portals — similar 20–40KB range
- →State PSC exam portals — most follow SSC-style limits
Troubleshooting
SSC CGL portal says my photo must be between 20KB and 50KB
Target 30–35KB. Use quality 52 at 350×450px. The 50KB maximum gives you room — do not over-compress to 15KB.
IBPS Clerk rejects my photo even though size is correct
IBPS requires JPG format, white background, and specific dimensions (200×230px typically). Check their official notification for the exact dimension spec each year.
My photo has a colored background — portal says white background required
Use FileCurve Background Remover to remove background, then export on white before compressing.
Photo looks grainy at 30KB
Start from a sharp, well-lit source. At 350×450px and quality 52, a good original photo looks acceptable for form submission.
Signature is over 30KB at 140×60px
Signatures at 140×60px JPG should be under 10KB at quality 60. If larger, your signature is not white background — contrast matters.
Frequently asked questions
What dimensions do SSC exam portals require?
SSC typically specifies 3.5cm × 4.5cm at 100dpi, which equals approximately 138×177px to 350×450px depending on the portal version. Always check the specific notification.
Does photo quality affect exam application acceptance?
Not for automated portals — they check file size and format. However, biometric matching during the exam requires a recognizable face, so quality should not be too degraded.
Is 30KB enough for IBPS PO?
IBPS PO photo requirement is typically 20–50KB JPG. 30KB is ideal — inside the range with buffer on both ends.
Should I use colour or black-and-white?
Colour, unless the portal explicitly says greyscale. Most Indian government exam portals accept colour photos.
Can I reuse the same compressed photo for multiple exams?
Only if dimensions and size match each portal's requirements. SSC, IBPS, and RRB often have slightly different specs — always verify before each application.