Zeugly is a free, privacy-first web utility toolkit and developer sandbox. It offers over 95+ browser-based tools to format JSON, decode JWTs, resize images, generate OG preview cards, create secure passwords, convert timestamps, analyze cron expressions, minify SVGs, and inspect QR codes safely. Every action runs 100% client-side in your local browser.

Do I need an account or subscription to use the tools?

No. All tools on Zeugly are 100% free with no sign-ups, no registration, no subscriptions, and no usage limits. You can open any tool, complete your work, and close the tab anytime.

Are tools on Zeugly available offline?

Yes. Once the web application loads in your browser, all processing scripts and tool logics run locally. You can continue using tools like JSON Formatter, Base64 Encoder, Password Generator, and Image Resizer even if your internet connection drops.

How do client-side utility tools keep my data safe?

Unlike traditional online converters that upload your code, confidential files, or text to remote cloud servers, Zeugly uses native browser APIs (such as Web Crypto API, Canvas API, and FileReader). Your inputs are parsed and processed in your local browser memory, ensuring your code, passwords, JWT tokens, and images never leave your machine.

Does Zeugly collect or store any personal data or files?

No. We operate under a strict zero-data collection rule. We have zero backend user databases, zero file storage servers, and zero data tracking scripts. We never ask for or store names, mobile/phone numbers, or physical addresses.

What is Zeugly's cookie policy regarding Google AdSense?

We use third-party advertising partners, including Google AdSense, to serve non-intrusive advertisements. Third-party vendors use cookies to serve ads based on prior web visits. Users can opt out of personalized advertising by visiting Google Ads Settings or www.aboutads.info.

How does client-side JSON formatting and JWT decoding work?

When you paste JSON or JWT strings into our developer tools, JavaScript running inside your web browser parses the payload in memory. Syntax validation, formatting, and JWT claim extractions happen instantaneously without sending any tokens or data payloads across the network.

Are generated passwords and UUIDs cryptographically secure?

Yes. Our password generator and UUID v4 creator use hardware-backed operating system entropy via window.crypto.getRandomValues(). Seeds are generated strictly in your local device CPU.

Can I resize images, create OG cards, or add watermarks without uploading them to a server?

Yes! Our image resizer, watermarking tool, OG image generator, SVG optimizer, vectorizer, and converter tools render images onto HTML5 Canvas elements inside your browser. Calculations and compression are performed locally on your device, and processed files are downloaded directly from your browser memory.

What dimensions are used by the Open Graph (OG) Image Generator?

Our OG Image Generator renders at the standard 1200 x 630 pixels (1.91:1 ratio), optimized for Facebook, Twitter Cards, LinkedIn, Slack, and Discord link previews.

What is QR Code Phishing (Qishing) and how does Zeugly detect it?

Qishing is a social engineering attack where malicious actors replace legitimate QR codes with malicious stickers pointing to spoofed websites. Zeugly allows you to safely scan digital files or live camera streams, evaluating destination URLs for SSL encryption, phishing keywords, known link shorteners, and suspicious query parameters before you visit them.

Why is client-side QR scanning safer than traditional online scanners?

Most web-based QR scanners stream camera feeds or parsed URLs to backend servers, creating logs of scanned locations and links. Zeugly decodes QR codes entirely in your browser using WebAssembly and jsQR/ZXing engines, keeping your camera stream and URLs private.

Online Text Editor - Workspace

Rich Text Editor & Document Studio

Write, format, analyze, and transform text documents offline. Feature-rich WYSIWYG editor with live statistics, target word counter, custom list styles, quote formatting, interactive table generator, HTML/Markdown exports, and local auto-save.

How to Use Report Bug

Words0

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Draft autosaved locally100% Client-Side Memory • Zero Server Uploads

Privacy-First Rich Text & Markdown Document Studio

Real-Time Word Metrics & Writing Goals

Instantly track word counts, character lengths, sentence numbers, paragraph splits, and progress towards customizable target word goals.

Multi-Format HTML & Markdown Conversion

Format rich copy with headings, custom list bullet/number styles, blockquotes, custom tables, links, and code blocks, then export seamlessly to clean HTML, Markdown (`.md`), or `.txt` files.

Automatic Local Auto-Save & Privacy

Never lose your drafts. Content is cached locally in your web browser storage so your documents persist safely across tab reloads without external server tracking.

Step-by-Step Guide

How to Use Online Text Editor

01Step 1

Start Writing or Upload File

Type directly into the editor canvas, paste text, or open an existing document.

02Step 2

Rich Formatting Tools

Format headings, bold/italic text, lists, blockquotes, code blocks, and links.

03Step 3

Real-time Metrics

Monitor live word count, character count, sentence count, paragraph count, and estimated reading time.

04Step 4

Auto-Save & Export

Drafts auto-save to local browser storage. Export as `.txt`, `.md`, or `.html` files.

Key Features & Capabilities

Rich text & Markdown formatting toolbar
Real-time word, character, sentence & paragraph counter
Automatic local storage draft saving
Export to TXT, Markdown (.md), and HTML formats
100% private offline browser execution

Privacy & Security Guarantee

100% Client-Side Privacy: All operations occur locally in your web browser memory using JavaScript and WebAssembly. Your files, text payloads, and images are never uploaded to external servers or stored in cloud databases.

Processing Mode: 100% Offline ClientZero Server Telemetry

Frequently Asked Questions

View All Platform FAQs

Is my text document uploaded or saved on a remote server?

No. Your documents and drafts remain strictly inside your browser's local storage. Data is never transmitted over the network.

Will I lose my written text if I accidentally close the tab?

No. The editor continuously auto-saves your progress to `localStorage` so your writing is restored when you return.

Experiencing an issue with Rich Online Text Editor?

Notice a bug, calculation error, or unexpected result? Let us know.

Report Bug

Zeugly