Image โ†’ glow / neon bloom. Cyberpunk ยท sci-fi ยท neon sign.

How to use

  1. Upload an image.
  2. Adjust glow intensity (blur amount).
  3. Set brightness threshold (only bright pixels glow).
  4. Pick glow color + saturation boost.
  5. Download PNG.

Key features

  • Extract bright areas โ†’ blur โ†’ composite (bloom technique)
  • Free glow color choice
  • 5 presets (neon / cyan / matrix / cyberpunk / soft)
  • Threshold for partial glow
  • Live preview

Use cases

  • Neon-sign photos โ€” enhance glow
  • Cyberpunk illustrations โ€” futuristic look
  • Game UI screenshots โ€” magic/tech emphasis
  • Album covers โ€” electronic mood
  • Concert / festival photos โ€” stage lights

How bloom works

(1) Extract pixels above brightness threshold. (2) Blur them. (3) Screen-blend over original. Simulates real-camera lens bloom โ€” standard in game graphics and film post-production.

FAQ

Glow only neon signs?

Set threshold to 220+ โ€” only bright LEDs glow.

Whole-image glow?

Lower threshold to ~120 to glow darker areas too.

Too saturated?

Lower saturation boost to 100โ€“120.

Free?

Yes.