{"slug": "show-hn-100kb-sdk-client-side-wasm-image-and-pdf-optimizer-to-cut-s3-bills", "title": "Show HN: 100kb-SDK – Client-side WASM image and PDF optimizer to cut S3 bills", "summary": "A developer released 100kb-sdk v1.1.1, a free, open-access WebAssembly SDK and companion Web Component (widget.js) that compresses and resizes images and PDFs locally in the browser before upload, claiming it cuts AWS S3 storage and bandwidth bills by 85%. The SDK targets exact file-size caps (for example strictly under 50KB or 100KB) without reducing image dimensions, preserves vector PDF text, fonts and barcodes, and adds facial-landmark alignment for passport and visa photos, with files processed in about 50ms in browser RAM and no backend or API keys required. A Commercial License costs $19/mo or $149/yr to remove the \"Powered by 100KB\" link, and the developer cites 10,000+ developers using the tool and an example of $350 in uncompressed S3 fees falling to a $3,972/yr (~94%) bandwidth reduction.", "body_md": "**100KB Extension v1.1.1:** Compress & resize files in 0ms directly in Google Chrome\n\nIntegrate exact KB image bisection, vector PDF stream compression, and studio AI background removal into your React, Next.js, Node, WordPress, or Shopify app. Slashes AWS S3 bills by 85% with 0ms cloud compression latency.\n\n**Looking for free personal file compression?** All consumer web tools on [www.100kb.in](https://www.100kb.in/en) are 100% FREE forever. For developers, our WebAssembly SDK (`100kb-sdk`) and Web Component (` widget.js`) are also 100% free and open-access with zero API keys or backend server setup required.\n\nDeep technical documentation, integration guides for e-commerce platforms, and SDK references.\n\nComplete WebAssembly SDK method specs (`100kb-sdk`), HTML Web Component parameters (` widget.js`), and framework boilerplates.\n\nEmbed `<100kb-uploader>` in WordPress without custom PHP. Auto-compress Contact Form 7 and WooCommerce uploads.\n\nOptimize Shopify customer photo uploads for custom merchandise, print-on-demand, and passport submission apps.\n\nCompare feature specifications, client-side WebAssembly execution engines, domain whitelisting, and S3/R2 storage adapters across Developer Free ($0) and Commercial License ($19/mo or $149/yr).\n\nCode snippets for React, Vue, Next.js, Node.js, Python, PHP, Angular, Svelte, and HTML5 Web Component widgets.\n\nHigh-scale platform processing millions of files? Get unlimited domain licensing and custom WebAssembly builds.\n\nWhy 10,000+ developers choose client-side WebAssembly over expensive cloud APIs.\n\nFiles compress in 50ms locally inside the browser RAM before upload. Eliminates mobile form abandonment.\n\nZero raw file server uploads. Confidential documents, marksheets, and medical records never leave the user's device.\n\nShrinks 15MB uploads down to 100KB before hitting AWS S3 or Cloudflare R2, cutting storage & bandwidth bills by 85%.\n\nOne simple SDK replacing 5 messy open-source npm packages for PDF streams, image bisection, and AI BG removal.\n\nClick any engine to explore its live interactive tool and technical API specs.\n\nEverything a developer or engineering lead needs to integrate, launch, and manage the SDK seamlessly.\n\nTest zero-config client-side WASM execution locally (`npm i 100kb-sdk`) with unlimited operations.\n\nInstant email delivery of your Commercial License Key via automated LemonSqueezy checkout.\n\nPass `init100KB({ apiKey: 'KEY' })` to automatically remove the \"Powered by 100KB\" link on your domain.\n\nIf a subscription changes, the SDK seamlessly flips back to Free mode without ever breaking your upload forms.\n\nSee how much your startup saves by compressing user files in the browser before upload to S3 or Cloudflare R2.\n\n$350\n\nEstimated uncompressed S3 fees\n\n$19 / mo\n\nCommercial License rate\n\n$3,972 / yr\n\n~94% Reduction in Cloud Bandwidth\n\nUnderstand exactly how our client-side SDK features eliminate upload friction, pass portal verification, and slash infrastructure costs.\n\n**What It Does:** Automatically compresses files to exact size caps (e.g. strictly under 50KB or 100KB) without shrinking image dimensions.\n\n💡 **Why It Converts:** Eliminates \"File size too large\" error rejections on government, visa, and banking forms.\n\n**What It Does:** Processes images and PDFs 100% locally inside the browser's sandbox RAM. Raw files never touch third-party servers.\n\n💡 **Why It Converts:** Gives you instant privacy compliance for healthcare, fintech, and legal apps with zero SOC2 audit overhead.\n\n**What It Does:** Shrinks PDF stream sizes while preserving vector text structures, embedded fonts, and barcodes.\n\n💡 **Why It Converts:** Keeps text 100% crisp for automated barcode scanners and official document verification.\n\n**What It Does:** Uses facial landmark detection to align eye levels and crop photos so the head fills 70% of the frame on solid white backgrounds.\n\n💡 **Why It Converts:** Guarantees 100% acceptance for US Visa (DS-160), UK Passport, and passport photo uploads.\n\nCopy-paste 3 lines of code to optimize images and PDFs in 50ms.\n\n``` js\nimport { useState } from 'react';\nimport { compressImage } from '100kb-sdk';\n\nexport function ImageUploader() {\n  const [status, setStatus] = useState('');\n\n  const handleFileChange = async (e: React.ChangeEvent<HTMLInputElement>) => {\n    const file = e.target.files?.[0];\n    if (!file) return;\n\n    setStatus('Compressing in 50ms in browser WASM...');\n    \n    // 100% Client-Side WASM Compression before upload\n    const { blob, sizeBytes } = await compressImage(file, {\n      targetKB: 100,\n      mimeType: 'image/jpeg'\n    });\n\n    console.log(`Compressed to ${(sizeBytes / 1024).toFixed(1)}KB`);\n    // Now upload small 100KB blob directly to AWS S3 / Cloudflare R2!\n  };\n\n  return <input type=\"file\" onChange={handleFileChange} />;\n}\n```\n\n100% self-serve client-side WebAssembly compression. Automated license key delivery via LemonSqueezy.\n\n$0 / forever\n\nFree client-side WebAssembly SDK for open-source & community projects.\n\n$19 / month (or $149/yr)\n\n100% Unbranded license key for production SaaS apps, e-commerce, and agency clients.\n\nCompare client-side WASM SDK methods, Web Component parameters, and framework integration boilerplates.\n\nEverything you need to know about developer access, privacy, and limits.", "url": "https://wpnews.pro/news/show-hn-100kb-sdk-client-side-wasm-image-and-pdf-optimizer-to-cut-s3-bills", "canonical_source": "https://www.100kb.in/en/developer", "published_at": "2026-10-17 04:26:57+00:00", "updated_at": "2026-10-17 04:58:58.519281+00:00", "lang": "en", "topics": ["developer-tools", "ai-tools", "ai-products"], "entities": ["100kb-sdk", "widget.js", "100KB", "AWS S3", "Cloudflare R2", "LemonSqueezy", "WordPress", "Shopify"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/show-hn-100kb-sdk-client-side-wasm-image-and-pdf-optimizer-to-cut-s3-bills", "markdown": "https://wpnews.pro/news/show-hn-100kb-sdk-client-side-wasm-image-and-pdf-optimizer-to-cut-s3-bills.md", "text": "https://wpnews.pro/news/show-hn-100kb-sdk-client-side-wasm-image-and-pdf-optimizer-to-cut-s3-bills.txt", "jsonld": "https://wpnews.pro/news/show-hn-100kb-sdk-client-side-wasm-image-and-pdf-optimizer-to-cut-s3-bills.jsonld"}}