Locly

Free, fast, no registration required. All processing runs locally in your browser to protect your privacy.

Practical online tools for developers, designers, and all internet users. Generate QR codes, format code, convert formats - open and use instantly.

🆓

Completely Free

All tools are free to use

🔒

Privacy First

Data processed locally

⚡

Fast & Easy

No registration needed

📱

Multi-device

Works on phone & desktop

All Tools

🤖AI Tools

AI Object Eraser

Remove unwanted objects from photos using AI-powered inpainting

Convert audio recordings to text transcription using AI

Convert text to natural-sounding speech audio using AI

Image to Text (OCR)

Extract text from images using AI-powered OCR

AI Image Generator

Create images from text descriptions using AI

Translate text between languages using AI

Text Summarizer

Condense long text into concise summaries using AI

Writing Improver

Enhance your writing with AI-powered suggestions

Regex Explainer

Understand complex regex patterns with AI explanations

Understand complex JSON data structures with AI

AI Product Ad Image

Create professional ecommerce product advertising images using AI

📄PDF Tools

Combine multiple PDF files into one document locally

Extract or split PDF pages into separate files locally

Reduce PDF file size while maintaining quality locally

Export PDF pages as PNG or JPG images locally

Rotate all or selected PDF pages by 90, 180, or 270 degrees

PDF Page Numbers

Add page numbers to a PDF and download the result

Add a text watermark to PDF pages locally

PDF Extract Text

Extract selectable text from a PDF in your browser

Delete PDF Pages

Remove selected pages from a PDF in your browser

Reorder PDF Pages

Drag PDF page thumbnails to rearrange order

Convert DOCX to PDF locally in your browser

PDF to Word (Text)

Export selectable PDF text to a simple DOCX

🖼️Image Tools

Image Compressor

Compress images to a target file size in KB, processed locally in your browser

Image Converter

Convert images between JPG, PNG, and WebP formats, processed locally in your browser

Resize images to custom dimensions or ecommerce presets, processed locally in your browser

Image Watermark

Add text or logo watermarks to protect your images, processed locally in your browser

Image to Base64

Convert images to Base64 strings locally in your browser, no upload required

Convert HEIC/HEIF images to JPG format, processed locally in your browser

Remove EXIF metadata from images to protect your privacy, processed locally in your browser

Crop images with custom dimensions or aspect ratio presets, processed locally in your browser

Rotate images 90/180/270 degrees or flip horizontally/vertically, processed locally in your browser

Color Palette from Image

Extract dominant colors from images with HEX and RGB values

Combine multiple images into a single PDF file, processed locally in your browser

Favicon Generator

Generate favicons in multiple sizes from any image, processed locally in your browser

Aspect Ratio Calculator

Find an aspect ratio or the missing width or height

Convert SVG markup or files to PNG locally

Contrast Checker

Measure foreground/background contrast against WCAG AA and AAA

💻Developer Tools

QR Code Generator

Generate QR codes from text or URLs with PNG download

Format, minify, and validate JSON data

JSON ↔ YAML Converter

Convert between JSON and YAML formats instantly, processed locally in your browser

CSV ↔ JSON Converter

Convert between CSV and JSON formats instantly, processed locally in your browser

Compare two texts and highlight differences, processed locally in your browser

Markdown ↔ HTML

Convert between Markdown and HTML formats instantly, processed locally in your browser

Decode JWT tokens to view header and payload data, processed locally in your browser

Test regular expressions with live highlighting, processed locally in your browser

Base64 Encoder/Decoder

Convert between text and Base64 format

URL Encoder/Decoder

Encode and decode URL strings

SHA-256 & MD5 Hash Calculator

Calculate SHA-256, MD5, and other hash digests online

Generate random UUID/GUID identifiers

Timestamp Converter

Convert between Unix timestamps and datetime

Color Converter

Convert between HEX, RGB, and HSL color formats

Password Generator

Generate strong, random passwords locally in your browser

UTM Link Generator

Build UTM campaign links for marketing analytics, processed locally in your browser

Count words, characters, and estimate reading time instantly

Preview how a title and meta description may look on Google

Convert text between lower, UPPER, Title, camel, snake, and kebab case

Turn titles into clean URL slugs with optional accent stripping

Translate five-field cron into plain English with sample next runs

Markdown Preview

Live Markdown preview with GFM and Mermaid diagrams

Password Strength Checker

Estimate password strength locally with tips to improve it

HTML Entity Encoder/Decoder

Convert text to HTML entities and back instantly

Remove Duplicate Lines

Deduplicate lines while optionally keeping first-seen order

Highlight additions, removals, and changes between two JSON values

XML ↔ JSON Converter

Convert between XML and JSON locally in your browser

Chmod Calculator

Convert between octal and symbolic Unix permissions

Sort text lines ascending or descending with optional filters

robots.txt Generator

Build User-agent, Disallow, Allow, and Sitemap rules as copyable text

Lorem Ipsum Generator

Generate classic placeholder text by paragraphs, sentences, or words

Find and replace text with optional regex and case options

Join / Split Lines

Join lines with a delimiter or split text into lines

Keyword Density Checker

Count word frequency and density percentages in your text

Schema Markup Generator

Generate JSON-LD for WebApplication, FAQPage, Organization, and Article

CSS Unit Converter

Convert between px, rem, and em with a custom root font size

Number Base Converter

Convert numbers between binary, octal, decimal, and hexadecimal

Generate a WiFi QR code from SSID, password, and encryption

JSON to TypeScript

Convert JSON into TypeScript interfaces or type aliases

Meta Tag Generator

Generate HTML meta, Open Graph, and Twitter Card tags

Cron Expression Generator

Build standard 5-field cron expressions with presets

Encode and sign JWT tokens with HS256 in your browser

Format SQL with indentation and keyword casing

llms.txt Generator

Generate a site llms.txt file for AI crawlers and GEO

Create a vCard QR code and download a .vcf contact file

Sitemap Generator

Build a sitemap.xml from a list of URLs in your browser

IPv4 Subnet Calculator

Calculate IPv4 network, broadcast, and host ranges

Generate HMAC-SHA1/SHA256/SHA512 digests in your browser

Beautify or minify HTML in your browser

Beautify or minify CSS in your browser

CSS Box Shadow Generator

Generate and preview CSS box-shadow values

YAML Formatter & Validator

Format and validate YAML with line/column errors

Markdown Table Generator

Build GFM Markdown tables with CSV/TSV import

Hreflang Tag Generator

Generate hreflang tags for HTML, sitemaps or HTTP headers

CSS Gradient Generator

Create linear, radial and conic CSS gradients

Tint & Shade Generator

Generate tints, shades and 50–950 scales from a HEX color

JavaScript Formatter

Format or minify JavaScript with basic syntax hints

CSS Border Radius Generator

Generate CSS border-radius with live preview

CSS Flexbox Generator

Build common flexbox layouts and copy CSS

Format or minify XML with line-number errors

Generate 6-digit TOTP codes from a Base32 secret

💼Business Tools

Profit Margin Calculator

Calculate gross profit and margin percentage instantly

Discount Calculator

Calculate sale price, savings, and discount percentage instantly

ROAS Calculator

Calculate return on ad spend and break-even ROAS

Social Media Image Sizes

Quick reference for image dimensions on all major platforms

Markup Calculator

Solve for cost, selling price, or markup percentage

Barcode Generator

Create EAN-13 and Code 128 barcodes and download PNG

Percentage Calculator

Find percentages, ratios, and percent change instantly

Break-Even Calculator

Find break-even units and revenue from costs and price

Timezone Converter

Convert a date and time across major world time zones

Invoice Generator

Build an invoice and download a PDF entirely in your browser

Convert common length, weight, and temperature units

Loan / EMI Calculator

Estimate monthly EMI, total interest, and repayment from principal and rate

Compound Interest Calculator

Estimate future value from principal, rate, time, and compounding frequency

Date Difference Calculator

Calculate whole days between two local calendar dates

Working Days Calculator

Count working days with weekend and optional holiday exclusions

Sales Tax Calculator

Calculate tax amount and total from price and tax rate

Calculate return on investment from cost and return

ICS Calendar Generator

Create downloadable .ics calendar events in your browser

Calculate cubic meters and volumetric weight for shipping

Number to Words

Convert numbers to English words in your browser

Salary to Hourly Calculator

Convert between annual, monthly, biweekly, weekly and hourly pay

GTIN Check Digit Calculator

Calculate and validate GTIN, UPC and EAN check digits

Roman Numeral Converter

Convert Arabic numbers and Roman numerals both ways

Calculate tip percentage and split the bill

About Locly

Locly provides free Image tools (compress, convert, resize, watermark your own photos), UTM campaign link builder, and Developer helpers (JSON, JWT, regex, hash, Base64, UUID, and more). We've built a growing collection of practical utilities covering image processing, marketing analytics, and everyday development needs.

Unlike other online tool websites, all our tools run locally in your browser. Your data is never uploaded to any server, maximizing your privacy and data security. Whether processing sensitive configuration information, personal data, or business materials, you can use them with confidence.

We always adhere to the principles of simple, efficient, and free, continuously optimizing user experience and adding new practical features. If you have any suggestions or requests, please submit feedback through ourContact Uspage.

FAQ

Are these tools really free?

Yes, all tools are completely free with no hidden charges or usage limits.

Is my data safe?

Yes. All tools run locally in your browser, and data is never uploaded to any server. All input is cleared when you close the page.

Do I need to register?

No. All tools work instantly without registration, login, or providing any personal information.