10
Free micro tools

The basics,
done right.

Tiny tools for students, developers, and freelancers. No login. No nonsense. Just open and use.

Explore Tools
10+
Free tools
0
Login needed
Uses per day
📅
Attendance Calculator
How many classes can you still miss?
Free
🧾
GST Invoice Generator
Download PDF instantly with CGST/SGST
Free
📈
SIP / EMI Calculator
Loan EMI, SIP returns, home loan
Free
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JSON Formatter
Beautify, minify, validate in one click
Free
CGPA Calculator
Attendance Tracker
GST Invoice
JSON Formatter
SIP Calculator
Regex Tester
Cron Builder
Color Contrast
ATS Resume Checker
Marks Calculator
Image Border Tool
Link Shortener
Image Compressor
Code Screenshot
CGPA Calculator
Attendance Tracker
GST Invoice
JSON Formatter
SIP Calculator
Regex Tester
Cron Builder
Color Contrast
ATS Resume Checker
Marks Calculator
Link Shortener
Image Compressor
Code Screenshot
All Tools

Pick your tool,
get it done.

View all 10+ tools →
🔍
Dev
Regex Tester
Test regular expressions directly in your browser with real-time text highlights and parsing limits.
🗓️
Student
Day Calculator
Find exact number of days between two dates, or efficiently add/subtract days natively.
🗜️
Student
Image Compressor
Reduce document and photo sizes perfectly for strict college and job application form limits locally.
🔠
Student
Uppercase Converter
Instantly convert any text to UPPERCASE. Live preview, one-click copy. 100% browser-based.
🔡
Student
Lowercase Converter
Convert any text to lowercase instantly. Great for formatting form inputs, emails, and code.
✍️
Student
Font Generator
Generate 15+ fancy Unicode fonts — Bold, Italic, Script, Fraktur, and more. Copy for Instagram, WhatsApp, and bios.
📋
Student
Text Copy Tool
Format, clean, and copy text in one click. Remove extra spaces, fix case, count words and characters.
📊
Student
CGPA Calculator
Convert your CGPA to percentage for SPPU, MSBTE, VTU, and GTU. Supports all grading patterns.
📅
Student
Attendance Calculator
Find out how many lectures you can safely skip — or how many you need to attend to hit 75%.
🎯
Student
Marks Required
Calculate exact marks needed in your remaining exams to pass or hit your target aggregate.
{ }
Dev
JSON Formatter
Paste messy JSON — instantly beautify, minify, or validate. Errors highlighted with line numbers.
📸
Dev
Code Screenshot
Paste code and export beautiful macOS-style image mockups natively without server uploads.
Dev
Cron Builder
Visual interface to build cron expressions. Shows next 5 scheduled run times in plain English.
🎨
Dev
Color Contrast
Enter two hex colors and get WCAG AA / AAA accessibility scores instantly. Design with confidence.
🧾
Finance
GST Invoice Generator
Fill in your details, download a professional PDF invoice with GSTIN, HSN code, CGST & SGST.
📈
Finance
SIP / EMI Calculator
Calculate SIP returns, loan EMI, or home loan repayment. Interactive charts show your growth curve.
📄
Dev
Resume ATS Checker
Paste your resume and a job description — get a keyword match score and improvement tips instantly.
🔗
Dev
Link Shortener
Shorten long URLs instantly with custom aliases. Privacy-first and lightning fast.
📏
Designer
Image Resizer
Instantly resize the dimensions of any JPEG, PNG, or WEBP locking aspect ratios cleanly.
🔄
Designer
Image Format Converter
Batch convert image formats instantly between WEBP, PNG, and JPEG without servers.
📱
Designer
QR Generator
Instantly generate deeply customizable Matrix QR vectors from URL or specific string inputs.
✂️
Designer
Profile Cropper
Easily pan and crop any image into a perfect circle or rounded square for social media.
🖼️
Designer
Image Border & Background
Add customizable borders and professional backgrounds to your images instantly.
Social Media

Grow your reach.

View all tools →
Instagram
Instagram
150+ hashtags
YouTube
YouTube
120+ keywords
LinkedIn
LinkedIn
100+ hashtags
X
Twitter / X
120+ hashtags
TikTok
TikTok
130+ hashtags
Trending hashtags & keywords — copy-paste ready for every niche. Explore Social Media Hub →

Find a tool.
How it works

Three steps.
That's it.

01
Pick your tool

Browse by category — student, developer, or finance. Everything is free. No account required.

02
Enter your data

Simple input fields, no jargon. Works on mobile too. Your data never leaves your browser.

03
Get your answer

Instant results. Download PDFs, copy outputs, or share the link. Done in under 30 seconds.

Loved by students

What people are saying

Real feedback from real students and developers who use BasicsHub every semester.

"The attendance calculator saved me before exams. I finally knew exactly how many more classes I could miss. Bookmarked forever."
AR
Aryan Rane
MSBTE Diploma · Computer Engineering
"I use the JSON formatter every single day at work. Clean, fast, and it actually shows you which line has the error."
SK
Sneha Kulkarni
Backend Developer · Pune
"The GST invoice tool is perfect for my freelance clients. Download PDF, send on WhatsApp. Exactly what I needed."
RP
Rahul Patil
Freelancer · Nagpur

Free Web-Based Micro Tools Architecture — Privacy First

BasicsHub represents a paradigm shift within modern decentralized micro-utilities by actively refusing to incorporate frustrating user login flows, expensive paywalls, or deeply invasive server-side telemetry trackers natively inherent in alternative platforms. We exclusively engineered an absolutely lightning-fast suite of tools covering comprehensive requirements spanning robust mathematics targeting Indian collegiate structures deeply integrating SPPU or MSBTE CGPA computations perfectly to sophisticated web developer formats natively validating JSON datasets correctly.

By structurally harnessing incredibly dense capabilities natively locked natively within HTML5 Canvas integrations and cutting-edge browser memory Javascript processors securely natively, our platform explicitly delivers uncompromised optimizations ranging sequentially from robust localized WEBP image converters efficiently optimizing Web Vitals natively, structurally complex Cron execution schedules, to native PDF generation structures exporting highly formatted local GST client invoices directly from standard input forms efficiently.

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