ToolNestdev
JSON Formatter & Validator
Format messy JSON and validate syntax with readable error guidance.
Open tool55+ Tools • Free • No Sign-up • Browser-based
Free Online Tools for Developers, SEO, Students & Creators
Solve daily tasks in seconds — format JSON, generate QR codes, calculate EMI, compress images, create hashtags, plan studies, and much more. All tools run 100% in your browser with zero data collection and no account required.
Browse by category
Choose a category to find the right tool fast.
All free online tools
55 toolsseo
Text to URL Slug Generator
Convert titles into clean, SEO-friendly slugs in one click.
Open toolseo
Meta Title & Description Preview
Preview search snippets for desktop and mobile before publishing.
Open toolseo
Robots.txt Generator
Build robots.txt rules with practical presets and crawl guidance.
Open toolseo
Sitemap.xml Generator
Generate XML sitemaps for static websites using URL lists.
Open tooltext
Word Counter & Reading Time
Count words, characters, and estimate reading time with SEO hints.
Open tooldev
Password Strength Checker
Check password strength and get actionable improvement suggestions.
Open tooldev
UUID Generator
Generate bulk UUIDs and understand common UUID versions quickly.
Open tooldev
Base64 Encoder / Decoder
Encode or decode text and files in Base64 format instantly.
Open tooldev
CSS Minifier & Beautifier
Minify CSS for production or beautify compressed styles for editing.
Open toolseo
Canonical URL Checker
Compare page URL and canonical target to catch indexing conflicts.
Open toolseo
Open Graph / Social Preview
Preview social link cards using Open Graph style fields.
Open toolseo
Keyword Density Checker
Measure keyword frequency and identify over-optimization risks.
Open tooltext
Lorem Ipsum Generator
Generate placeholder text by words, sentences, or paragraphs.
Open tooltext
Text Cleaner
Remove extra spaces, line noise, and hidden junk characters.
Open toolstudent
Percentage Calculator
Find percentages, percentage change, and part-of-total values instantly.
Open toolstudent
CGPA to Percentage Converter
Convert CGPA to percentage using common university formulas.
Open toolstudent
Attendance Calculator
Track attendance percentage and find how many classes you can skip.
Open toolstudent
Age Calculator
Calculate exact age in years, months, and days from your birthdate.
Open toolstudent
Date Difference Calculator
Find the exact number of days, weeks, and months between any two dates.
Open toolstudent
Exam Countdown Timer
Set target exam dates and see a live countdown in days, hours, and minutes.
Open toolstudent
GPA Calculator
Calculate semester and cumulative GPA with custom credit hours.
Open toolstudent
Resume Headline Generator
Generate impactful resume headlines from your skills and experience.
Open toolstudent
Study Time Planner
Plan daily study hours across subjects with a balanced weekly schedule.
Open toolstudent
Marks Required Calculator
Find out what marks you need in remaining exams to hit your target.
Open toolcreator
Instagram Hashtag Generator
Generate relevant hashtag sets for Instagram posts by niche and topic.
Open toolcreator
YouTube Title Analyzer
Analyze YouTube titles for click-through potential and SEO strength.
Open toolcreator
YouTube Tag Generator
Generate optimized YouTube tags from your video topic and keywords.
Open toolcreator
Caption Generator
Create engaging social media captions for any platform and tone.
Open toolcreator
Bio Generator
Generate short, punchy bios for social profiles and portfolios.
Open toolcreator
Thumbnail Text Preview
Preview how text looks on YouTube thumbnails with font and color options.
Open toolcreator
YouTube Description Template Generator
Generate structured YouTube descriptions with timestamps and links.
Open toolcreator
Video Length Estimator
Estimate video duration from word count and calculate RPM earnings.
Open toolcreator
Hook Generator for Reels
Generate scroll-stopping hooks for Instagram Reels and YouTube Shorts.
Open toolcreator
Content Idea Generator
Get fresh content ideas for any niche with format and angle suggestions.
Open toolimage
Image to PDF Converter
Convert one or multiple images into a single PDF document.
Open toolimage
Compress Image
Reduce image file size while maintaining visual quality.
Open toolimage
Resize Image
Resize images to exact pixel dimensions or percentage scale.
Open toolimage
JPG to PNG Converter
Convert JPG images to PNG format with transparency support.
Open toolimage
PNG to JPG Converter
Convert PNG images to JPG format for smaller file sizes.
Open toolimage
QR Code Generator
Generate QR codes for URLs, text, WiFi, and contact information.
Open toolimage
Barcode Generator
Generate standard barcodes (Code128, EAN, UPC) from text input.
Open toolimage
Base64 Image Encoder
Convert images to Base64 data URI strings for embedding in code.
Open toolimage
Image Metadata Viewer
View EXIF and metadata details of any uploaded image file.
Open toolimage
Favicon Generator
Generate favicon ICO and PNG files from any uploaded image.
Open toolutility
EMI Calculator
Calculate monthly EMI for loans with principal, rate, and tenure.
Open toolutility
Loan Interest Calculator
Calculate total interest payable on any loan with amortization view.
Open toolutility
GST Calculator
Calculate GST amounts with inclusive and exclusive pricing for India.
Open toolutility
Currency Converter
Convert between major world currencies with approximate exchange rates.
Open toolutility
SIP Calculator
Calculate returns on Systematic Investment Plans with compound growth.
Open toolutility
Inflation Calculator
See the future cost of goods adjusted for inflation over time.
Open toolutility
Age in Days Calculator
Find your exact age in days, hours, minutes, and seconds.
Open toolutility
Time Zone Converter
Convert times between world time zones instantly.
Open toolutility
Unit Converter
Convert between units of length, weight, temperature, and more.
Open toolutility
Scientific Calculator
Perform advanced math with trigonometry, logarithms, and exponents.
Open toolAdvertisement
Ad Placement (AdSense-ready placeholder)
Why ToolNest is the best free online tools website
ToolNest brings together 55+ professional-grade utilities in one fast, clean interface. Whether you are a developer debugging JSON payloads, an SEO specialist optimizing meta tags, a student calculating CGPA, a content creator generating hashtags, or anyone who needs to compress an image or calculate EMI — we have the right tool for you.
Every tool runs entirely in your browser. Your data never leaves your device, which means maximum privacy and zero latency. There is no account to create, no software to install, and no usage limits. Just open a tool and start working.
Our tools are organized into seven categories: Developer, SEO, Text, Student, Creator, Image, and Utility. Each tool includes detailed instructions, practical examples, common mistakes to avoid, and answers to frequently asked questions.
The website is statically generated for instant load times and optimized for Core Web Vitals. Mobile-first design ensures every tool works perfectly on phones, tablets, and desktops. Internal linking between related tools helps you discover relevant utilities and complete multi-step workflows efficiently.
Bookmark ToolNest as your go-to utility hub. New tools are added regularly based on user feedback. If you find our tools helpful, share them with your classmates, colleagues, or community.
Frequently asked questions
Are all tools on ToolNest free?
Yes, every tool on ToolNest is 100% free to use with no hidden fees, sign-ups, or usage limits.
Is my data safe when using these tools?
Absolutely. All tools run entirely in your browser. Your data is never sent to any server or stored anywhere.
Do I need to create an account?
No. You can use any tool immediately without creating an account or providing any personal information.
How many tools does ToolNest offer?
ToolNest currently offers 55+ free tools across 7 categories: Developer, SEO, Text, Student, Creator, Image, and Utility.
Can I use these tools on my phone?
Yes. Every tool is designed with a mobile-first approach and works smoothly on phones, tablets, and desktop computers.
How often are new tools added?
We regularly add new tools based on user feedback and trending needs. Bookmark this page to stay updated.