Show HN: Zlvox – 25 Free Developer Tools (AI, JSON, PDF) with Zero Tracking
Zlvox is a platform offering 25 free developer tools covering AI, JSON, PDF, image processing, and more, with a strong emphasis on privacy (client-side processing, zero data retention) and performance. No sign-up required.
v2.0 Performance Engine Live
Raw Power.
Zero Bloat.
Maximum Speed.
The definitive platform for high-performance developer utilities. Free online tools for PDFs, images, QR codes & data generation — no sign-up, zero data retained.
Explore Arsenal
Read Manifesto
No sign-up required
Zero data stored
100% client-side
Sub-second execution
Zlvox Dashboard
15+
Premium Utilities
0ms
Server Latency
⚔️ JSON Flattener Online Free
HOT
🔐 Steganography
XOR-256
🎨 Image Converter
FREE
⚔️ JSON Flattener Online Free
📄 PDF Suite
📱 QR Generator
🔐 Steganography
🎨 Image Converter
🎭 Anime Finder
🔨 Dummy Data Generator
💻 Code Snippet to Video Reels Generator Free
🔑 Password Manager
🔍 SEO Meta Tag Checker Free Online
💰 Finance Calc
🎬 HTML CSS to MP4 Video Recorder Free
⚔️ JSON Flattener Online Free
📄 PDF Suite
📱 QR Generator
🔐 Steganography
🎨 Image Converter
🎭 Anime Finder
🔨 Dummy Data Generator
💻 Code Snippet to Video Reels Generator Free
🔑 Password Manager
🔍 SEO Meta Tag Checker Free Online
💰 Finance Calc
🎬 HTML CSS to MP4 Video Recorder Free
Arsenal
15+ Premium Utilities
Enterprise-grade tools engineered for maximum performance. Zero bloat, military-grade privacy, sub-second execution.
👽
HOT NEW
Reddit Search Engine
Advanced social listening tool for Reddit. Search multiple keywords, filter by subreddit and time, and use Gemini AI for smart replies and summaries.
Launch
⚔️
HOT
JSON Flattener Online Free
Free online JSON flattener. Flatten deeply nested JSON instantly. Export CSV or Excel. No signup.
Launch
🔐
PREMIUM
Steganography
Military-grade XOR-256 encrypted message hiding inside images. Invisible to human eyes, undetectable by algorithms.
Launch
🎨
FREE
Image Converter
Blazing-fast format converter with quality controls and batch processing. No uploads — canvas-based processing.
Launch
📱
FREE
QR Generator
Industrial-strength QR codes with custom branding and high-resolution exports. URLs, vCards, WiFi and more.
Launch
📄
FREE
PDF Suite
Complete PDF toolkit: merge, split, compress, encrypt, extract pages. Handle documents up to 100MB with ease.
Launch
🔑
FREE
Password Manager
Free browser password manager. Generate strong passwords, save locally. Zero server storage, no account needed.
Launch
🎬
NEW
HTML CSS to MP4 Video Recorder Free
Record HTML and CSS animations as MP4 video at 60fps. Perfect for UI demos and portfolio clips. Free.
Launch
💰
FREE
Finance Calc
Advanced financial calculator with compound interest, loan amortization, investment projections and visual charts.
Launch
🔍
FREE
SEO Meta Tag Checker Free Online
Free SEO meta tag checker. Analyze OG tags, Twitter Cards and schema from any URL. Get instant SEO tips.
Launch
📅
FREE
Age Calculator
Precise age breakdown by years, months, days, hours. Future projections, milestone tracking, timezone support.
Launch
💻
NEW
Code Snippet to Video Reels Generator Free
Convert code to animated video for Reels and Shorts. Syntax highlighting, typing animation, 4K export. Free.
Launch
🔨
HOT v2.0
Dummy Data Generator Online
Generate millions of rows of fake dummy data free. Export to CSV, JSON or SQL. No signup needed.
Launch
🎭
AI
Anime Finder
AI-powered anime discovery. Find shows by plot, themes, or vibes. Neural recommendations with MAL integration.
Launch
View all 15+ tools
15+ Free Tools
50%+ Client-Side Logic
0 Server Tracking Pixels
99+ Lighthouse Score
Why Zlvox
Built for developers who care.
No bloat, no sign-up walls, no privacy invasion. Just fast, reliable tools that respect your time and your data.
Read our manifesto →
01
Zero Data Retention
Everything runs client-side. Your files, data, and inputs never leave your browser. No server logs, no telemetry.
02
Open & Transparent
No paywalls, no feature-gating. Every tool is fully free. What you see is what you get, always.
03
Sub-Second Performance
99+ Lighthouse scores across the board. Canvas-based processing, deferred scripts, and zero-bloat architecture.
04
No Sign-Up, Ever
No accounts, no emails, no passwords. Just open a tool and start working. We respect your time.
From the blog
Latest Intelligence
All articles
AI
Why I Stopped Using Random Online AI Tools in 2026 (And Built Privacy-First Alternatives Like ZLVOX)
Discover why I stopped relying on random online AI tools in 2026 and chose to build privacy-first alternatives like ZLVOX. Learn how secure AI tools protect your data, improve productivity, and offer a more transparent experience for developers, freelancers, students, and businesses.
Jun 30, 2026 · 6 Min read
Read
Tools
Why I Stopped Pasting API Keys Into Random Online Tools (And Built My Own Developer Toolkit)
Most developers have pasted API keys, tokens, or sensitive data into random online tools at some point. Here's why I stopped doing it, the security risks involved, and how that decision led me to build my own privacy-focused developer toolkit, ZLVOX.
Jun 18, 2026 · 7 min read
Read
Tech
TensorWave Raises $350M at $1.55B Valuation: What It Means for AMD and the AI Industry
TensorWave just raised $350M at a $1.55B valuation in a round co-led by AMD itself. Here's why AMD is betting big on an all-AMD AI cloud — and what it means for NVIDIA's grip on the AI infrastructure market.
Jun 11, 2026 · 9 min read
Read
WhatsApp Store Builder
Sell anything, directly on WhatsApp.
Create your free online store in minutes. Add products, share your unique link, and start receiving orders straight to your WhatsApp — no coding, no monthly fees, no middlemen.
Your own store link
Share zlvox.com/store/your-name anywhere
Orders on WhatsApp
Customers order directly — no checkout hassle
Full dashboard
Manage products, orders & customers in one place
100% Free
No commission, no subscription — free forever
Create Free Store
View demo
zlvox.com/store/your-store
My WhatsApp Store
Live & accepting orders
👗
Shalwar Kameez
Rs 1,800
New
👟
Sports Shoes
Rs 3,500
Hot
👜
Ladies Bag
Rs 2,200
📱
Phone Cover
Rs 450
Order on WhatsApp
New order received!
Store is live
Get started
Ready to supercharge your workflow?
Stop relying on sluggish, bloated web tools. Access our entire arsenal of high-performance utilities instantly — free, forever.
Launch the Arsenal
Read the blog