hsb.horse
AI
PromptLex (image prompt manager)
Tokenizes image prompts and links shared words so you can explore them like a vocabulary index.
Tools
Browser-based utilities and experiments.
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19 tools
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AI
1 tools
dev
1 tools
dev
UUID Generator
Generate UUIDs in the browser.
display
4 tools
display
20-20-20 Break Timer
Free online 20-20-20 break timer that guides a 20-second distance break. Easy to use between meetings, study blocks, or coding sessions.
display
Eye Training: Saccade
Free online saccade trainer that makes you reacquire a target as it jumps across the screen. Good for quick gaze shifts and scanning resets.
display
Eye Training: Smooth Pursuit
Free online smooth pursuit trainer that lets you follow a moving target with your eyes only. Useful for breaking up long periods of fixed near-focus.
display
Screen Burn Fixer
Free browser tool that runs full-screen patterns to ease image retention on OLED and LCD displays.
finance
1 tools
finance
Stock Vision (investment analysis reports)
Investment analysis reports summarizing earnings and performance trends for Japanese and US stocks. Combines AI workflows with human review to deliver fact-based insights with links to primary sources.
image
11 tools
image
Chroma Key
Free online chroma key tool to remove background colors from images. Green screen and blue screen supported.
image
Image Comparator
Free browser-based tool to compare two images, highlight pixel differences with tolerance control, and keep every file on your device.
image
Image Scramble
Free online tool to scramble images by dividing them into tiles and shuffling with a password. Perfect for privacy protection and temporary image concealment.
image
Invert Color (Negative)
Browser-based color inversion with a 0–100% blend slider. Keep the original format on download—no uploads required.
image
Monochrome Converter
Free online tool to convert images to monochrome (black and white) in your browser. Adjust contrast and brightness. No installation required.
image
Normal Map Generator
Generate normal maps from height maps or photos in the browser with intensity control and DirectX/OpenGL Y-flip.
image
Pixel Cipher
Free on-device tool that uses PBKDF2 + AES-GCM/CTR to encrypt images and stores decryption metadata in a PNG tEXt chunk for automatic recovery.
image
Pixelator
Free online tool to pixelate and mosaic images in your browser. No installation required.
image
PNG Steganography (Hide Any File)
Embed or extract any file in PNG metadata without altering pixels. 100% browser-side and lossless.
image
Seamless Texture Maker
Free online tool to create seamless tileable textures from images in your browser.
image
Stamp Maker
Free online tool to convert images into stamp-style images like ink stamps or seals. Supports binary thresholding and dithering.
video
1 tools
video
Video Sprite Sheet Generator
Free online tool to generate sprite sheets from video files in your browser. No installation required.
display
20-20-20 Break Timer
Free online 20-20-20 break timer that guides a 20-second distance break. Easy to use between meetings, study blocks, or coding sessions.
image
Chroma Key
Free online chroma key tool to remove background colors from images. Green screen and blue screen supported.
display
Eye Training: Saccade
Free online saccade trainer that makes you reacquire a target as it jumps across the screen. Good for quick gaze shifts and scanning resets.
display
Eye Training: Smooth Pursuit
Free online smooth pursuit trainer that lets you follow a moving target with your eyes only. Useful for breaking up long periods of fixed near-focus.
image
Image Comparator
Free browser-based tool to compare two images, highlight pixel differences with tolerance control, and keep every file on your device.
image
Image Scramble
Free online tool to scramble images by dividing them into tiles and shuffling with a password. Perfect for privacy protection and temporary image concealment.
image
Invert Color (Negative)
Browser-based color inversion with a 0–100% blend slider. Keep the original format on download—no uploads required.
image
Monochrome Converter
Free online tool to convert images to monochrome (black and white) in your browser. Adjust contrast and brightness. No installation required.
image
Normal Map Generator
Generate normal maps from height maps or photos in the browser with intensity control and DirectX/OpenGL Y-flip.
image
Pixel Cipher
Free on-device tool that uses PBKDF2 + AES-GCM/CTR to encrypt images and stores decryption metadata in a PNG tEXt chunk for automatic recovery.
image
Pixelator
Free online tool to pixelate and mosaic images in your browser. No installation required.
image
PNG Steganography (Hide Any File)
Embed or extract any file in PNG metadata without altering pixels. 100% browser-side and lossless.
AI
PromptLex (image prompt manager)
Tokenizes image prompts and links shared words so you can explore them like a vocabulary index.
display
Screen Burn Fixer
Free browser tool that runs full-screen patterns to ease image retention on OLED and LCD displays.
image
Seamless Texture Maker
Free online tool to create seamless tileable textures from images in your browser.
image
Stamp Maker
Free online tool to convert images into stamp-style images like ink stamps or seals. Supports binary thresholding and dithering.
finance
Stock Vision (investment analysis reports)
Investment analysis reports summarizing earnings and performance trends for Japanese and US stocks. Combines AI workflows with human review to deliver fact-based insights with links to primary sources.
dev
UUID Generator
Generate UUIDs in the browser.
video
Video Sprite Sheet Generator
Free online tool to generate sprite sheets from video files in your browser. No installation required.