Explore all tools
Create QR code
Developer utilities
Format JSON, generate UUIDs, encode or decode Base64, and prepare structured data without opening a heavy app.
Free browser tools for practical work
Useful online tools for code, business, SEO, and daily tasks
Learncodetoday gives you fast, no-login tools for formatting JSON, creating QR codes, calculating GST, generating invoices, building SEO tags, creating schema, and handling common developer utilities.
Free online tools
Free location QR code generator
Free invoice generator
No watermark
No multi-step process
No login required
Direct destination QR codes
Fast browser-based utilities
Free online tools
Free location QR code generator
Free invoice generator
No watermark
No multi-step process
No login required
Direct destination QR codes
Fast browser-based utilities
What we offer
Small tools, built with the care of a real product
Every tool is designed for quick completion, mobile use, copy/download actions, helpful validation, and SEO-friendly explanations so users can understand the result they are generating.
Business tools
Create invoices, calculate GST, generate location QR codes, and prepare printable assets for daily operations.
SEO helpers
Generate meta tags, Open Graph tags, website schema, FAQ schema, and clean JSON-LD for better search visibility.
How it works
Open a tool, finish the task, move on
Choose the tool
Open QR Generator, JSON Formatter, GST Calculator, Invoice Generator, Meta Tag Generator, or any other practical utility.
Enter your details
Paste content, enter numbers, upload a logo, or choose options. The interface stays focused on the task, not account creation.
Copy or export
Copy results, download files, print invoices, or share generated QR codes from supported mobile browsers.
Popular tools
Open the tool you need and finish the task
Website Audit Tool
Run a free beginner-friendly SEO audit with scores, technical checks, charts, fixes, broken links, and PDF export.
JSON Formatter
Format, validate, minify, inspect, copy, and download JSON in a split workspace.
QR Generator
Create URL, text, and location QR codes with color, logo, size, PNG, and PDF options.
GST Calculator
Add or remove GST and split tax into CGST, SGST, or IGST with common India GST rates.
Password Generator
Generate strong passwords in your browser with length, symbols, numbers, and ambiguity controls.
Meta Tag Generator
Generate SEO, Open Graph, Twitter, canonical, and robots meta tags with live previews.
Website Schema Generator
Generate JSON-LD schema for Organization, Website, Article, FAQ, Product, LocalBusiness, and more.
UUID Generator
Generate one or many UUID v4 values with copy, batch, uppercase, and hyphen options.
Base64 Tool
Encode and decode Base64 text with URL-safe, padding, swap, copy, and download controls.
Invoice Generator
Create clean invoices with line items, GST/tax, discounts, notes, live preview, print, and PDF flow.
LLMS.txt Generator
Create an llms.txt file with site summary, key pages, docs links, policies, and crawler guidance.
Robots.txt Generator
Build a clean robots.txt file with sitemap, user-agent, allow, disallow, crawl delay, and AI bot rules.
JWT Decoder & Validator
Decode JWT header and payload, inspect claims, check expiry, and optionally verify HS256 signatures in the browser.
Loan EMI Calculator
Calculate EMI, total interest, total payment, part prepayment impact, and a month-by-month loan schedule.
BMI Calculator
Calculate BMI, healthy weight range, category, metric/imperial units, and simple goal guidance.
Image Compressor
Compress multiple JPG, PNG, or WebP images with quality, max width, previews, savings, and batch download.
Image to WebP Converter
Convert JPG, PNG, and other browser-readable images to WebP with quality, resize, previews, and downloads.
XML Sitemap Generator
Generate XML sitemap markup from pasted URLs with lastmod, changefreq, priority, and validation notes.
Canonical Tag Generator
Create canonical tags, alternate hreflang links, and copy-ready HTML for SEO duplicate-control.
Image Resizer
Resize images by width, height, percentage, fit mode, format, and quality with instant preview and download.
Favicon Generator
Create favicon PNG sizes and copy HTML tags from a logo or source image with safe square cropping.
Image Crop Tool
Crop images with free, square, 4:3, 16:9, and social ratios using live preview and download controls.
Bulk Crop Images
Upload up to 15 images, adjust a crop box for each one, preview results, download individually, or export all crops as a ZIP.
SIP Calculator
Calculate SIP maturity value, invested amount, estimated returns, step-up SIP, inflation-adjusted value, and yearly table.
Salary Calculator
Estimate CTC to in-hand salary with basic pay, HRA, PF, professional tax, income tax, bonus, and monthly breakdown.
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Why Learncodetoday
Free online tools that are simple, fast, and search-friendly
Many users need one small result: a formatted JSON file, a QR code for a shop location, a GST total, a strong password, a UUID, or a clean invoice. Learncodetoday focuses on those practical tasks and keeps the tool interface first, so users do not have to scroll through a long article before doing the work.
Each page also includes clear instructions, examples, privacy notes, FAQs, and related tools. That makes the site useful for visitors and gives search engines enough original content to understand every tool page.
Frequently asked questions
Questions people ask before using free online tools
These answers cover the most common concerns around free QR generators, JSON formatters, invoice makers, and SEO tools: watermarks, signups, expiry, privacy, and export quality.
Is Learncodetoday really free to use?
Yes. The tools are designed as free browser utilities. You can generate QR codes, format JSON, calculate GST, create invoices, and generate meta/schema output without a paid account.
Do QR codes created here have a watermark?
No. QR codes generated on Learncodetoday are intended to download without a watermark, so you can use them on posters, menus, packaging, invoices, and business material.
Will my QR code expire after I download it?
Static QR codes do not expire by themselves. If you create a direct QR code for a URL or Google Maps location, it will keep working as long as the destination link remains available.
Can I create a Google Maps location QR code?
Yes. Use the QR Generator and choose Location mode. You can paste a Google Maps URL or enter latitude and longitude to create a QR code that opens the map location.
Is JSON formatting done on the server?
The JSON Formatter is designed to process data in the browser wherever possible. That keeps the tool fast and avoids unnecessary uploads for normal formatting and validation tasks.
Can I make invoices without signing up?
Yes. The Invoice Generator is planned as a no-login tool for creating simple invoices with line items, tax, totals, notes, preview, and print or PDF output.
What is a meta tag generator used for?
A meta tag generator helps create title, description, canonical, Open Graph, Twitter, and robots tags so a page looks better in search results and social previews.
What is a website schema generator?
A schema generator creates JSON-LD structured data for pages, organizations, products, FAQs, articles, local businesses, and software applications. Schema should describe content that is visible on the page.