Online Developer & Audio Tools
Fast, private, and local-first online tools.
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JSON Format
Format, minify and validate JSON data
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64
Base64
Base64 encoding and decoding
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♙
AES Encryption
AES symmetric encryption and decryption
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⏱
Timestamp Converter
Two-way conversion and calculation between Unix timestamps and date-time
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∿
Tone & Noise Generator
Generate test tones and white/pink/brown noise
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L R
Left / Right Channel Test
Check headphone and speaker left/right channels with rhythmic beeps
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ICO
SVG to ICO
Convert vector graphics to multi-size favicons
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PNG
SVG to PNG
Convert vector graphics to transparent PNG images
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AWAKE
Keep Screen Awake
Keep the screen awake with one click
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♢All tool processing happens in your browser. Your input is never uploaded.