CLAED3D / FREE TOOLS — on-device utilities

Real tools.
Zero uploads.

Every tool on this station runs entirely in your browser. Your files are processed on your own device — they never leave it.

On-device AI

The heavy machinery — real models running on your own hardware.

Files & media

PDFs and images, handled without a single byte uploaded.

PDF Merge

Combine PDFs into one file, in the order you choose.

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PDF Split

Extract pages or break a PDF into parts.

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PDF Compress

Shrink a PDF down to email size.

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Image Converter

PNG ↔ JPG ↔ WebP ↔ AVIF, single files or batches.

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Image Compressor

Cut image file size 60–90% with visual quality intact.

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Image Resizer

Exact-pixel resize and crop, batch friendly.

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Favicon Generator

Turn any image into a complete favicon set.

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EXIF Viewer & Remover

See what a photo reveals — then strip it, losslessly.

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Image Color Picker

Click any pixel for its color, plus an automatic palette.

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Image Cropper

Drag to crop — free-form or locked to a preset ratio.

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Audio Trimmer

Cut a clip from any audio file, saved as WAV.

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Audio Recorder

Record from your mic and save the file — never uploaded.

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PDF to Images

Every page as a PNG or JPEG, rendered on your device.

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Images to PDF

Bundle photos and scans into one PDF, ordered your way.

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Rotate PDF

Rotate every page or just a range — losslessly.

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SVG to PNG

Rasterize SVG files or pasted markup at any scale.

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ZIP Extract & Create

Open ZIP archives or build new ones on your device.

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Image Watermark

Stamp text over photos — corner, center, or tiled.

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PDF Watermark

Stamp text across every page — diagonal, header, or footer.

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PDF Page Numbers

Add page numbers — position, format, and start count.

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Color Blindness Simulator

See your image as color-blind users see it.

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Image Rotate & Flip

Rotate 90° or mirror — lossless canvas transforms.

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Text & data

Writing and comparing, at the speed of a keystroke.

Developer

The daily-driver utilities, with nothing phoning home.

JSON Formatter

Format, validate, and minify JSON.

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Regex Tester

Live matches, capture groups, and replacement previews.

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Base64

Encode and decode text or files, both directions.

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Hash Generator

MD5, SHA-1, SHA-256 checksums of text or files.

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UUID Generator

v4 and v7 UUIDs, one at a time or in bulk.

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Timestamp Converter

Unix ↔ human time, in any timezone.

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Color Tools

Pick, convert (HEX/RGB/HSL/OKLCH), and build palettes.

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URL Encoder / Decoder

Encode, decode, and dissect URLs and query strings.

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JWT Decoder

Decode tokens and verify HMAC signatures — locally.

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HTML Entities

Escape text for HTML, or decode entity soup back.

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Cron Parser

Plain-English cron expressions and the next run times.

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CSV ↔ JSON

Convert both ways — quoted fields and headers done right.

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YAML ↔ JSON

Convert configs both ways — multi-document YAML included.

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Number Base Converter

Binary, octal, decimal, hex, any base 2–36 — big numbers too.

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Subnet Calculator

CIDR math — network, broadcast, hosts, every mask format.

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chmod Calculator

Unix permissions — checkboxes, octal, and symbolic, in sync.

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JSON to TypeScript

Paste JSON, get interfaces — nesting and optionals inferred.

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Hex Viewer

Inspect any file byte by byte — offsets, hex, ASCII.

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JSON Diff

Compare two JSON documents semantically, by path.

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Image to Base64

Data URIs with the CSS and HTML snippets ready to paste.

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UTM Link Builder

Build campaign-tagged URLs, properly encoded.

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CSS Gradient Generator

Build gradients visually, copy production-ready CSS.

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Color Contrast Checker

WCAG contrast ratios with a live, readable preview.

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Meta Tag Generator

Title, description, OG, and Twitter cards — paste-ready.

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CSS Box Shadow

Layered shadows with live preview — copy the CSS.

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Text ↔ Binary

Text to binary or hex and back — real UTF-8 bytes.

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robots.txt Generator

Crawler rules, AI-bot opt-outs, sitemap — no syntax slips.

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Tabs ↔ Spaces

Convert indentation both ways — real tab-stop math.

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Everyday

Small instruments you reach for weekly.

QR Code Generator

URLs, Wi-Fi, vCards — download as SVG or PNG.

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Password Generator

Cryptographically random passwords and passphrases, fully offline.

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Unit Converter

Length, mass, data, temperature, and more.

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Percentage Calculator

X% of Y, what percent, and percent change — live.

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Date Difference

Days between dates, exact age, and birthday countdowns.

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Invoice Generator

A clean invoice PDF — built on your device, never stored.

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Stopwatch & Timer

Laps and countdowns that stay accurate in background tabs.

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Time Zone Converter

Convert across zones — DST and half-hour offsets handled.

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Loan Calculator

Monthly payment, total interest, full amortization schedule.

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Scientific Calculator

Powers, trig, logs, and history — no eval, no server.

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QR Code Scanner

Read any QR code from a photo or screenshot.

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Text Encryption

Encrypt text with a password — real AES, on your device.

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Aspect Ratio Calculator

Simplify ratios or solve the missing dimension.

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Roman Numerals

Numbers to numerals and back — with the steps shown.

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BMI Calculator

Metric and imperial BMI with the healthy range for your height.

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Random Picker

Pick winners, shuffle lists, roll numbers — cryptographically fair.

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Number to Words

Spell out any number — plain or currency style.

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GPA Calculator

Weighted GPA from grades and credit hours.

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Compound Interest

Watch savings grow — contributions, APY, yearly table.

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BPM Tap Tempo

Tap along to any song and read its tempo.

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Barcode Generator

Code 128, EAN, UPC — sharp SVG or PNG out.

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