VaultTools — 100% In-Browser Privacy Utilities (Zero Server Uploads)

All 17 Client-Side Privacy Utilities

• Smart Document & PII Redactor — Auto-detect & blackout SSN, credit cards, emails, and phones 100% locally. Protect confidential documents, bank statements, and IDs before sharing. Client-side scanning with 1-click blackouts and custom box drawing.
• EXIF Wiper & Smart Compressor — Wipe hidden GPS location tags & shrink image size up to 90%. Inspect and purge tracking metadata (latitude, longitude, camera serials, timestamps) and optimize WebP/JPEG/PNG sizes without quality loss.
• In-Browser Background Remover — Instant cutout studio without server uploads or $0.20 fees. Remove backgrounds from photos and product mockups right on your GPU/Canvas. Replace with transparency, solid studio white, or custom gradients.
• Secure Offline PDF Suite — Merge, split, extract pages & stamp watermarks in browser RAM. Combine multiple PDFs, extract custom page ranges, and add confidential security watermarks without uploading sensitive contracts to cloud servers.
• Private Offline JWT Inspector — Decode JSON Web Tokens safely without leaking secrets to public sites. Inspect JWT header, payload claims, expiration timestamps, and signature status completely offline without transmitting tokens over the wire.
• JSON Prettifier & TypeScript Studio — Format, validate JSON and generate strict TypeScript interfaces. Paste any JSON payload to format, validate, minify, and automatically generate clean TypeScript interfaces and types.
• Vector QR Code Studio — Create custom QR codes for Wi-Fi, URLs, and vCards with SVG export. Design high-resolution QR codes with custom foreground/background colors, error correction, and vector SVG or PNG downloads.
• Offline Text & Code Diff Checker — Compare two text blocks side-by-side with LCS line diffs & patch export. Quickly find additions, deletions, and character modifications between two versions of text, code, or configuration files.
• AI Prompt & Log PII Sanitizer — Reversible PII & API key scrubber for ChatGPT, Claude & Cursor prompts. Automatically mask emails, API keys, SSNs, IPs, and client names with reversible tokens ([EMAIL_1], [API_KEY_1]) before pasting into AI—then restore real values in 1 click.
• AES-256-GCM Encryption & Hash Vault — WebCrypto PBKDF2 message encryption & SHA-256/512 file checksum verifier. Encrypt and decrypt confidential text with military-grade AES-256-GCM (250k PBKDF2 iterations) or compute SHA-256/SHA-512 checksums for local files.
• CSPRNG Passphrase & Entropy Lab — Hardware-random diceware passphrases, 256-bit API keys & crack-time auditor. Generate memorable EFF-style passphrases, random passwords, and 256-bit API tokens via crypto.getRandomValues() with real-time GPU crack-time auditing.
• Tracking URL & Batch UTM Scrubber — Strip fbclid, gclid, utm_* & 40+ ad-tech surveillance parameters instantly. Clean single or batch URLs by purging cross-site tracking query parameters from Meta, Google Ads, Mailchimp, HubSpot, and TikTok before sharing.
• HAR Network Archive Sanitizer — Scrub authorization tokens, cookies & API keys from Chrome DevTools .har files. Sanitize network archives before sending to support teams or third parties. Strips Bearer tokens, Cookie headers, and sensitive query parameters 100% locally in browser memory.
• Strict Exact-KB Portal Compressor — Compress signature & passport photos to strict portal limits (< 20 KB, < 50 KB). Guarantees uploaded images match government, KYC, visa, and exam portal file size requirements using binary search canvas quality optimization.
• GST B2B Return & JSON Studio — Convert sales invoices to official GSTR-1 offline JSON and CSV tables. Generate government-compliant GSTR-1 JSON upload files from B2B invoices with automatic CGST, SGST, and IGST tax calculations without server uploads.
• APK Permission & Privacy Scanner — Audit Android APKs in browser RAM for spyware permissions & ad tracking SDKs. Inspect Android APK binaries directly in your browser. Unpacks manifests, checks dangerous camera/audio/GPS permissions, and detects tracking SDKs.
• Canary Token & Zero-Width Leak Catcher — Invisibly fingerprint confidential text & decode leaker fingerprints. Embed steganographic zero-width unicode characters into memos, code, and contracts to trace whistleblowers and unauthorized leaks in 1 click.

Original Privacy & Security Guides

• Client-Side vs Cloud Document Redaction: The Security & Compliance Guide — Why standard PDF highlighting fails to protect confidential data, and how in-memory canvas rasterization guarantees permanent redaction. (7 min read)
• Hidden in Your Photos: The Comprehensive Guide to EXIF Metadata & Geotagging — How smartphone cameras embed your exact home coordinates in every picture, and how to scrub tracking tags before publishing online. (6 min read)
• Zero-Knowledge In-Browser Cryptography: How WebCrypto and PBKDF2 Protect Sensitive Data — A deep architectural dive into modern browser WebCrypto primitives, AES-256-GCM encryption, and why cloud password managers are vulnerable. (8 min read)
• Preventing Corporate Data Leaks to AI Models: Best Practices for PII and Code Sanitization — How employees accidentally leak proprietary intellectual property and customer records to commercial LLMs, and how to safely sanitize prompts. (7 min read)
• The Complete Guide to Safe PDF Handling: Merging, Splitting, and Watermarking Offline — Why free cloud PDF websites pose severe security risks to legal contracts, and how WebAssembly enables zero-upload PDF processing. (6 min read)

Popular Zero-Upload Workflows

• Redact Bank Statements Online Free (100% Local RAM) — Permanently blackout account numbers, routing digits, home addresses, and transaction rows inside your browser before sending proof of income or residency.
• Blackout SSN, Passport & Driver’s License Photos Offline — Mask Social Security Numbers, passport numbers, signatures, and barcodes before submitting KYC or HR verification documents.
• Remove GPS Location Tags from iPhone & Android Photos — Inspect and strip hidden EXIF latitude, longitude, altitude, timestamp, and smartphone serial numbers before posting images online.
• Batch Compress WebP, JPEG & PNG Offline in Browser — Shrink oversized images by up to 90% and convert to modern WebP format locally without cloud file limits or paywalls.
• Free Transparent PNG Background Maker (No Watermark) — Remove solid or studio backgrounds from logos, signatures, and portraits 100% locally in your browser without $0.20/image cloud fees.
• E-Commerce White Background Product Photo Studio — Replace cluttered backdrops with pure #FFFFFF studio white or custom brand colors for Amazon, Shopify, and eBay listings.
• Merge Confidential PDF Files Offline in Browser RAM — Combine legal contracts, tax returns, medical records, and invoices into a single PDF locally without uploading to third-party cloud servers.
• Add Confidential Watermark & Split PDF Pages Locally — Stamp diagonal security watermarks ("CONFIDENTIAL", "DRAFT", client names) or extract specific page ranges from PDFs 100% offline.
• Decode & Inspect Production JWT Tokens Offline — Inspect JSON Web Token headers, payload claims, and roles safely in browser memory without pasting live bearer tokens into cloud-logged debuggers.
• JWT Expiration (exp / iat) Timestamp & Payload Checker — Convert Unix epoch `exp`, `iat`, and `nbf` claims into human-readable timestamps and verify whether an authentication token is still active.
• Convert JSON to TypeScript Interfaces & Types Offline — Paste any REST or GraphQL API JSON response to automatically infer nested TypeScript `interface` definitions locally in your browser.
• Offline JSON Formatter, Validator & Minifier — Format unreadable single-line JSON payloads, pinpoint syntax errors, or minify JSON for production configs with zero cloud logging.
• Free Wi-Fi QR Code Generator (Vector SVG, No Redirects) — Create instant scan-to-connect Wi-Fi QR codes and direct URLs in crisp SVG or high-res PNG without tracking redirects or expiring links.
• Offline vCard Contact & URL Vector QR Code Maker — Generate high-density vCard contact QR codes and marketing links in infinite-resolution SVG format for business cards, flyers, and packaging.
• Compare .env Secrets & Config Files Privately Offline — Diff production `.env` variables, Kubernetes manifests, Terraform files, and SQL schemas side-by-side in browser RAM without leaking credentials.
• Private Side-by-Side Code & Contract Text Diff Viewer — Spot exact line additions, deletions, and edits between two versions of source code, legal agreements, or markdown drafts 100% locally.
• Anonymize ChatGPT & Claude Prompts (Reversible PII Masking) — Automatically replace client names, emails, phone numbers, SSNs, and API keys with `[EMAIL_1]` tokens before pasting into AI—then restore real values in 1 click.
• Scrub API Keys, Bearers & Emails from Server Logs Before Sharing — Sanitize stack traces, JSON logs, and debugging dumps by automatically masking OpenAI keys, AWS secrets, JWTs, IPs, and customer emails locally.
• Encrypt & Decrypt Text Online with AES-256-GCM (Zero Knowledge) — Lock sensitive notes, seed phrases, and credentials using native browser WebCrypto AES-256-GCM with 250,000 PBKDF2-SHA256 iterations.
• Offline SHA-256 & SHA-512 File Checksum Verifier — Compute cryptographic SHA-256, SHA-384, and SHA-512 digests for ISOs, installers, and archives locally in browser RAM without uploading large files.
• EFF Diceware Memorable Passphrase Generator (CSPRNG) — Generate high-entropy, human-memorable multi-word passphrases and 256-bit API secrets powered by your device’s cryptographic random number generator.
• Offline Password Entropy & GPU Crack-Time Calculator — Audit password strength in exact Shannon/pool entropy bits and simulate brute-force resistance against 100B/sec offline GPU hashcat clusters.
• Remove fbclid, gclid & utm_* Tracking Parameters from URLs — Strip Meta `fbclid`, Google `gclid`, Instagram `igshid`, Mailchimp `mc_eid`, and 40+ cross-site surveillance query tags before sharing links.
• Batch Marketing & Affiliate Tracking Link Scrubber — Clean dozens of URLs at once by pasting multi-line link lists to purge UTM tags, HubSpot trackers, and ad-click IDs while keeping functional query params.

How VaultTools Runs 100% In-Browser With Zero Server Uploads

Modern WebAssembly, HTML5 Canvas, and Web Workers turn your browser into a private local workstation.

How can I verify that VaultTools never uploads my files?

Open your browser Developer Tools (F12), switch to the Network tab, or turn off your Wi-Fi / enable Airplane Mode after loading the page. Every utility in VaultTools continues to work completely offline.

Are there any file size limits or daily usage caps?

No. Because files are processed inside your own device memory rather than on a remote cloud server, you can redact, compress, merge, and inspect as many files as you want for free.

What utilities are included in the VaultTools privacy suite?

VaultTools includes 17 zero-upload utilities: Smart Document & PII Redactor, AI Prompt & Log PII Sanitizer, EXIF Wiper & Image Compressor, In-Browser Background Remover, Secure Offline PDF Suite (Merge/Split/Watermark), AES-256-GCM Encryption & Hash Vault, CSPRNG Passphrase & Entropy Lab, Tracking URL & Batch UTM Scrubber, Offline JWT Inspector, JSON Prettifier & TypeScript Generator, Vector QR Code Studio, Offline Text & Code Diff Checker, HAR Network Archive Sanitizer, Strict Exact-KB Portal Compressor, GST B2B Return & JSON Studio, APK Permission & Privacy Scanner, and Canary Token & Zero-Width Leak Catcher.