Show HN: Hikaru Labs – A browser-based image toolbox

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Hikaru Labs - Image Engine

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Project: Mission White Crow

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Team work session. Any files you process will be saved to the team workspace automatically.

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Welcome to Hikaru Labs, your all-in-one suite for professional picture editing, built directly into your web browser. Whether you need to convert file formats, compress images to meet strict upload limits, or apply bulk edits like renaming and resizing, our powerful engine handles it all instantly.

Your Privacy is Guaranteed: All core image processing happens locally on your own device. Your sensitive files, including personal photos, passport scans, and negative films, are never uploaded to our servers. This client-side architecture ensures 100% data security while delivering lightning-fast processing speeds.

Step 1: Add Pictures

Drop picture or zip files here

Find Files on Computer

No files added

Step 2: Change Settings

1. Basic Changes

Change File Type

Change to PNG (ISO 15948)<br>Change to JPG (ISO 10918)<br>Change to WEBP<br>JPEG 2000 (ISO 15444) - Pro<br>JPEG-LS (ISO 14495) - Pro

Make File Smaller

Low<br>Medium<br>High

OR EXACT SIZE

Change Size

IG PostIG StoryYT Thumb<br>X / Twitter1080p HDSmall Square

Pixels

2. Image Edits

Rename Files

Turn Picture

90° Right90° Left180° Upside Down

Add Text Mark

3. Special Tools

Fix Negative Film<br>Make colors look normal

Clean up dust and noise

Passport Print Page<br>Make 30 small pictures on A4 page

ISO/IEC 19794-5 Biometric Strict Mode

Remove Hidden Data

✓ Removes Map Location Info<br>✓ Removes Camera Details<br>✓ Deletes Extra Hidden Tags<br>*100% Safe to do

Progress

0Files

0Done

0sTime Left

Step 3: Run Process

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Start

Download All Files<br>Clear List

How It Works

Upload Files: Drag and drop your images or ZIP archives into the upload area above.

Customize Settings: Choose your preferred output format, target file size, and apply necessary edits like rotation or watermarking.

Process Instantly: Click the Start button to let our local engine process your files securely.

Download Securely: Export your polished images individually or combined into a convenient ZIP folder.

Why Use This Tool?

Unmatched Speed: Skipping server uploads means your edits happen instantly.

Complete Privacy: Your photos never leave your device.

Batch Processing: Edit dozens of pictures simultaneously.

Advanced Utilities: Includes hidden EXIF data scrubbing and negative film inversion.

Supported Formats

We fully support the most popular image formats for web, print, and social media:

JPEG (.jpg, .jpeg)

PNG (.png)

WebP (.webp)

ZIP Archives (Auto-extracts compatible images)

About Hikaru Labs

Hikaru Labs was founded in 2026 by Aksh Raj (also known as CFBL), a young, self-taught solo developer with a vision to build high-performance, local-first web applications.

Frustrated by image tools that force users to upload sensitive files to remote servers or pay for basic features, Aksh built Hikaru Labs to bring powerful, privacy-centric processing directly to your browser. By leveraging modern web technologies, this engine ensures your data never leaves your device combining uncompromising security with lightning-fast speed.

Meet Peacock AI Assistant

Need a hand configuring the tool? Click the Peacock icon (🦚) floating in the bottom corner of your screen to chat with...

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