170 tools · 100% browser-based
Free Online Tools for PDF, Image, Text & Developers
TechbyJeel Tools is a growing library of free online tools that run entirely in your browser. Compress an image, merge a PDF, count words, format JSON or generate a QR code in seconds - with no signup, no upload and no watermark. Students, developers, designers, marketers and business owners use these tools every day to finish small tasks fast and keep their files completely private.
- 170+
- Free tools
- Fast
- Instant results
- Secure
- Nothing uploaded
- No signup
- Required, ever
Browse Free Online Tools by Category
Six focused collections covering the everyday jobs people search for.
Image Tools
Compress, resize, crop and convert
12 tools
PDF Tools
Merge, split, compress and convert
11 tools
Text Tools
Count, convert and clean up text
7 tools
Developer Tools
Format, encode and decode
38 tools
Generators
Create QR codes, passwords and colors
3 tools
Calculators
Quick, accurate everyday math
5 tools
SEO Tools
Clean URLs and search-ready content
19 tools
Security Tools
Hashing and password strength, fully offline
3 tools
Color Tools
Convert, sample and build palettes
5 tools
CSS Tools
Visual generators for modern CSS
8 tools
Utility Tools
Scanners, pickers and everyday helpers
5 tools
Finance Tools
EMIs, loans, GST, interest and currency exchange
5 tools
File Tools
Zip archives, CSV, JSON and Excel converters
6 tools
Encoding Tools
HTML entities, binary, ASCII and Morse code
4 tools
Network Tools
IP, DNS, WHOIS, Port and Ping diagnostics
8 tools
Converter Tools
Unit, length, weight, area, volume, temp and data storage
8 tools
Date & Time Tools
Time zone conversion, date differences, business days, timers and stopwatches
5 tools
Health Tools
Calorie, BMR, body fat, ideal weight, pace and hydration calculators
7 tools
DevOps Tools
Docker, Kubernetes, Nginx and Apache configurations
4 tools
Web Tools
Entity encoders, decoders, HTML & selectors
2 tools
Accessibility Tools
WCAG contrast checkers and accessibility auditors
2 tools
Web Performance Tools
Brotli/Gzip compression calculators & size analyzers
3 tools
Featured Free Online Tools
The tools our visitors reach for most often.
Image Compressor
Shrink JPG, PNG and WebP files without visible quality loss.
Compress ImageImage Resizer
Resize images to exact pixel dimensions or by percentage.
Resize ImagePDF Merge
Combine multiple PDF files into one ordered document.
Merge PDFsJSON Formatter
Beautify, minify and validate JSON with clear error messages.
Format JSONQR Code Generator
Create high-resolution QR codes for links, text and Wi-Fi.
Generate QR CodeImage Watermark
Add a text or logo watermark with full control over position and opacity.
Add WatermarkURL Slug Generator
Turn any headline into a clean, SEO-friendly URL slug.
Generate SlugHEX Color Palette Generator
Build harmonious palettes from a single HEX colour.
Create PaletteCSS Gradient Generator
Design linear and radial CSS gradients with a live preview.
Create GradientBarcode Generator
Create Code128, EAN, UPC and more as PNG or SVG.
Generate BarcodeAge Calculator
Work out an exact age in years, months and days.
Calculate AgeEMI Calculator
Calculate loan EMI, total interest payable, and amortization schedule.
Calculate EMICompound Interest Calculator
Calculate investment growth, maturity amount, and compound interest.
Calculate InterestZIP Extractor
Unzip archive files directly in your browser without uploading.
Extract ZipMorse Code Converter
Convert text to Morse code, decode Morse, and listen with audio playback.
Convert Morse CodeIP Lookup
Find detailed IP address geolocation, ISP, ASN, and map location.
Lookup IPDNS Propagation Checker
Check DNS record propagation across global resolvers worldwide.
Check DNSUnit Converter
Convert between length, weight, area, volume, temperature, speed, and data storage.
Convert UnitsLength Converter
Convert meters, kilometers, centimeters, inches, feet, yards, and miles.
Convert LengthTime Zone Converter
Convert time between global cities and time zones with live daylight saving info.
Convert TimezoneDate Difference Calculator
Calculate exact years, months, weeks, days, and hours between two dates.
Calculate DatesCalorie Calculator
Estimate daily calorie targets for weight loss, maintenance, or muscle gain.
Calculate CaloriesJWT Decoder & Validator
Decode, inspect, and validate JSON Web Tokens offline in your browser.
Decode JWTJWT Generator
Generate custom JWT tokens using HS256, HS384, or HS512 HMAC algorithms.
Generate JWTCron Expression Generator
Build 5-part cron expressions visually with live human-readable explanations.
Generate CronSQL Formatter
Beautify, indent, and format SQL queries with customizable keyword casing.
Format SQLJSON Diff Checker
Compare two JSON objects side-by-side and highlight additions, deletions, and edits.
Compare JSONENV File Generator
Build, format, and manage .env environment variable files with ease.
Generate EnvDocker Compose Validator
Validate docker-compose.yml files for syntax errors and schema issues.
Validate ComposeKubernetes YAML Validator
Validate Kubernetes manifests for required fields and configuration errors.
Validate KubernetesNginx Config Generator
Generate production-ready Nginx server blocks for web apps, reverse proxies, and SSL.
Generate Nginx ConfigCIDR Calculator
Calculate CIDR subnet masks, usable IP ranges, broadcast IPs, and total host counts.
Calculate CIDRSSL Certificate Checker
Inspect X.509 SSL/TLS certificates, issuer details, validity, and expiration countdown.
Check SSLKeyword Density Checker
Calculate keyword frequency, density percentages, n-grams and detect overused words.
Check Keyword DensityReadability Score Checker
Calculate Flesch Reading Ease, Flesch-Kincaid, Gunning Fog, SMOG & ARI readability scores.
Check Readability ScoreSEO Analyzer
Perform a complete on-page SEO audit for titles, metas, headings, OG tags & links.
Analyze SEO HealthOpen Graph Preview
Preview and validate Open Graph social media cards for Facebook, LinkedIn, Discord & Slack.
Preview Open GraphTwitter Card Preview
Preview summary and summary_large_image Twitter/X cards with live tag validation.
Preview Twitter CardMost Popular Tools This Month
Ranked by how often each tool is opened.
SVG to PNG Converter
Convert SVG vector files into high-quality PNG images instantly.
Convert to PNGCSV to Excel Converter
Convert CSV files into downloadable Excel XLSX spreadsheets.
Convert to ExcelImage Compressor
Shrink JPG, PNG and WebP files without visible quality loss.
Compress ImageImage Resizer
Resize images to exact pixel dimensions or by percentage.
Resize ImageImage Converter
Convert between PNG, JPG and WebP in one click.
Convert ImagePDF Merge
Combine multiple PDF files into one ordered document.
Merge PDFsPDF Split
Extract a page range or split a PDF into single pages.
Split PDFWord Counter
Live word, sentence, paragraph and reading-time statistics.
Count WordsJSON Formatter
Beautify, minify and validate JSON with clear error messages.
Format JSONQR Code Generator
Create high-resolution QR codes for links, text and Wi-Fi.
Generate QR CodePassword Generator
Create strong random passwords with a live strength estimate.
Generate PasswordImage to PDF
Turn JPG, PNG and WebP images into one clean PDF document.
Create PDFPDF to Image
Export every PDF page as a high-quality JPG or PNG.
Extract ImagesURL Encoder & Decoder
Percent-encode or decode URLs and query parameters instantly.
Encode / Decode URLTimestamp Converter
Convert Unix timestamps to dates and back, in UTC or local time.
Convert TimestampCSS Minifier
Strip whitespace and comments to ship smaller stylesheets.
Minify CSSJavaScript Minifier
Compress JavaScript by removing comments and dead whitespace.
Minify JavaScriptMarkdown Previewer
Write Markdown and see the rendered HTML update live.
Preview MarkdownRegex Tester
Test regular expressions with live highlighting and capture groups.
Test RegexHTTP Header Checker
Inspect response headers, status and redirects for any URL.
Check HeadersMeta Tag Generator
Build a complete, search-ready meta tag block in seconds.
Generate Meta TagsRobots.txt Generator & Validator
Create, inspect, and validate robots.txt rules, syntax errors, and crawler conflicts.
Generate & Validate Robots.txtSitemap Generator & Validator
Generate and validate XML sitemaps for sitemaps.org 0.9 protocol compliance.
Generate & Validate SitemapPassword Strength Checker
Score a password and see how long a crack would really take.
Check PasswordHEX to RGB Converter
Turn any HEX colour code into RGB and RGBA values instantly.
Convert HEXHEX Color Palette Generator
Build harmonious palettes from a single HEX colour.
Create PaletteCSS Box Shadow Generator
Craft layered box-shadow CSS with an instant preview.
Generate ShadowCSS Glassmorphism Generator
Build frosted-glass panels with backdrop blur CSS.
Create Glass EffectQR Code Scanner
Decode any QR code from an image, right in your browser.
Scan QR CodeRandom Number Generator
Draw random numbers in any range, with or without repeats.
Generate NumbersAge Calculator
Work out an exact age in years, months and days.
Calculate AgePercentage Calculator
Every common percentage calculation in one place.
Calculate PercentageEMI Calculator
Calculate loan EMI, total interest payable, and amortization schedule.
Calculate EMILoan Calculator
Calculate loan repayments, interest savings, and prepayment impacts.
Calculate LoanCurrency Converter
Convert global currencies with real-time exchange rates.
Convert CurrencyZIP Extractor
Unzip archive files directly in your browser without uploading.
Extract ZipExcel to CSV Converter
Convert Excel (.xlsx and .xls) workbooks into clean CSV format.
Convert ExcelBinary Converter
Convert between Binary, Text, Decimal, Hex, Octal, and ASCII.
Convert BinaryMorse Code Converter
Convert text to Morse code, decode Morse, and listen with audio playback.
Convert Morse CodeIP Lookup
Find detailed IP address geolocation, ISP, ASN, and map location.
Lookup IPDNS Lookup
Query domain DNS records including A, AAAA, MX, TXT, NS, and CNAME.
Lookup DNSPing Tool
Measure server latency, response time, and connection uptime.
Ping ServerDNS Propagation Checker
Check DNS record propagation across global resolvers worldwide.
Check DNSUnit Converter
Convert between length, weight, area, volume, temperature, speed, and data storage.
Convert UnitsTime Zone Converter
Convert time between global cities and time zones with live daylight saving info.
Convert TimezoneCalorie Calculator
Estimate daily calorie targets for weight loss, maintenance, or muscle gain.
Calculate CaloriesJWT Decoder & Validator
Decode, inspect, and validate JSON Web Tokens offline in your browser.
Decode JWTJWT Generator
Generate custom JWT tokens using HS256, HS384, or HS512 HMAC algorithms.
Generate JWTCron Expression Generator
Build 5-part cron expressions visually with live human-readable explanations.
Generate CronCron Expression Parser
Parse cron expressions into plain English schedules and future execution dates.
Parse CronSQL Formatter
Beautify, indent, and format SQL queries with customizable keyword casing.
Format SQLSQL to JSON Converter
Convert SQL INSERT statements or table queries into formatted JSON arrays.
Convert SQLJSON Diff Checker
Compare two JSON objects side-by-side and highlight additions, deletions, and edits.
Compare JSONYAML Formatter
Format, validate, and beautify YAML markup with syntax error checking.
Format YAMLYAML to JSON Converter
Convert YAML configuration files into formatted JSON instantly.
Convert YAMLJSON to YAML Converter
Convert JSON payloads into clean, indented YAML configuration documents.
Convert JSONENV File Generator
Build, format, and manage .env environment variable files with ease.
Generate EnvDocker Compose Validator
Validate docker-compose.yml files for syntax errors and schema issues.
Validate ComposeKubernetes YAML Validator
Validate Kubernetes manifests for required fields and configuration errors.
Validate KubernetesNginx Config Generator
Generate production-ready Nginx server blocks for web apps, reverse proxies, and SSL.
Generate Nginx ConfigApache Config Generator
Build Apache VirtualHost and .htaccess configurations visually.
Generate Apache ConfigCIDR Calculator
Calculate CIDR subnet masks, usable IP ranges, broadcast IPs, and total host counts.
Calculate CIDRSubnet Calculator
Divide networks into subnets and generate detailed subnetting tables.
Calculate SubnetSSL Certificate Checker
Inspect X.509 SSL/TLS certificates, issuer details, validity, and expiration countdown.
Check SSLKeyword Density Checker
Calculate keyword frequency, density percentages, n-grams and detect overused words.
Check Keyword DensityReadability Score Checker
Calculate Flesch Reading Ease, Flesch-Kincaid, Gunning Fog, SMOG & ARI readability scores.
Check Readability ScoreSEO Analyzer
Perform a complete on-page SEO audit for titles, metas, headings, OG tags & links.
Analyze SEO HealthRecently Added Online Tools
New tools ship regularly - nothing is ever put behind a paywall.
SVG to PNG Converter
Convert SVG vector files into high-quality PNG images instantly.
Convert to PNGCSV to Excel Converter
Convert CSV files into downloadable Excel XLSX spreadsheets.
Convert to ExcelKeyword Density Checker
Calculate keyword frequency, density percentages, n-grams and detect overused words.
Check Keyword DensityReadability Score Checker
Calculate Flesch Reading Ease, Flesch-Kincaid, Gunning Fog, SMOG & ARI readability scores.
Check Readability ScoreWhy People Choose TechbyJeel Tools
Private by design
Files are processed locally in your browser. Nothing is uploaded, stored or logged.
Instant results
No queues, no upload waits and no email links. Results appear as fast as your device can compute them.
No account needed
No signup, no password and no marketing emails. Open a tool and get on with your work.
Always improving
New tools are added regularly and every existing tool stays free with no usage caps.
From the blog
Practical guides on images, PDFs, privacy and web performance.
What Is an IP Address? Everything Beginners Need to Know
Learn what an IP address is, how IPv4 and IPv6 work, public vs private IPs, static vs dynamic addresses, and how to look up an IP safely.
Jeel Chheta
DNS Records Explained: A, AAAA, MX, TXT, CNAME, and More
Learn how DNS records work, including A, AAAA, MX, TXT, CNAME, NS, and SOA records, with simple examples and practical DNS lookup tips.
Jeel Chheta
What Is WHOIS Lookup and Why Should You Use It?
Learn what WHOIS lookup is, what domain registration data it reveals, how to use it, and why it matters for security, research, and domain ownership.
Jeel ChhetaFree Online Tools - Frequently Asked Questions
Everything you need to know about using TechbyJeel Tools.