Image Compressor

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// 300 kB\n\n let width = img.width;\n let height = img.height;\n\n // Maintain aspect ratio\n if (width > height) {\n if (width > MAX_WIDTH) {\n height *= MAX_WIDTH / width;\n width = MAX_WIDTH;\n }\n } else {\n if (height > MAX_HEIGHT) {\n width *= MAX_HEIGHT / height;\n height = MAX_HEIGHT;\n }\n }\n\n canvas.width = width;\n canvas.height = height;\n\n // Draw resized image\n ctx.drawImage(img, 0, 0, width, height);\n\n // Compress with reducing quality\n const compressRecursively = (quality: number) => {\n canvas.toBlob((blob) => {\n if (!blob) {\n reject(new Error('Failed to create blob'));\n return;\n }\n\n if (blob.size <= MAX_SIZE) {\n const compressedFile = new File([blob], file.name, {\n type: file.type,\n lastModified: Date.now()\n });\n resolve(compressedFile);\n } else if (quality > 0.1) {\n // Try again with lower quality\n compressRecursively(quality - 0.1);\n } else {\n reject(new Error(`Cannot compress image under 300 kB`));\n }\n }, file.type, quality);\n };\n\n compressRecursively(0.9);\n };\n\n img.onerror = () => reject(new Error('Image load failed'));\n img.src = event.target?.result as string;\n };\n\n reader.onerror = () => reject(new Error('File reading failed'));\n reader.readAsDataURL(file);\n });\n }, []);\n\n const handleFileUpload = async (event: React.ChangeEvent) => {\n const files = event.target.files;\n if (!files) return;\n\n const newImages: CompressedImage[] = await Promise.all(\n Array.from(files)\n .filter(file => file.type.startsWith('image/'))\n .map(async (file) => {\n try {\n // Use new preview generation method\n const preview = await generatePreview(file);\n \n console.log('Preview generated:', {\n fileName: file.name,\n previewType: typeof preview,\n previewLength: preview.length\n });\n\n return { file, preview };\n } catch (error) {\n console.error('Preview generation error:', error);\n return { \n file, \n preview: '', \n error: 'Preview generation failed' \n };\n }\n })\n );\n\n setImages(prev => [...prev, ...newImages]);\n\n // Compress images\n newImages.forEach(async (image) => {\n try {\n const compressedFile = await compressImage(image.file);\n \n // Update total compressed count\n const currentTotal = parseInt(localStorage.getItem('total_compressed') || '0');\n localStorage.setItem('total_compressed', (currentTotal + 1).toString());\n setTotalCompressed(currentTotal + 1);\n\n setImages(prev => prev.map(img => \n img.file === image.file \n ? { ...img, compressedFile } \n : img\n ));\n } catch (error) {\n setImages(prev => prev.map(img => \n img.file === image.file \n ? { \n ...img, \n error: error instanceof Error \n ? error.message \n : 'Compression failed' \n } \n : img\n ));\n }\n });\n };\n\n const handleDownload = (image: CompressedImage) => {\n if (!image.compressedFile) return;\n\n const url = URL.createObjectURL(image.compressedFile);\n const link = document.createElement('a');\n link.href = url;\n link.download = `compressed_${image.file.name}`;\n document.body.appendChild(link);\n link.click();\n document.body.removeChild(link);\n };\n\n return (\n

\n );\n}\n\nexport default async function server(request: Request): Promise {\n return new Response(`\n \n \n Image Compressor\n \n \n \n \n

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🖼️ Image Compressor

Code