Free Online Tools That Run in Your Browser
129 free tools for calculating, converting, editing and checking, including Thai tax, payroll and business documents. Most run on your device — nothing is uploaded, no account needed.
- 129 tools
- 13 categories
- Runs in your browser — nothing uploaded
Recently used
Popular tools
LINE Flex Message Editor
Design LINE Flex Messages visually and export JSON
Social Tools
TOTP / 2FA Code Generator
Generate 2FA codes offline — your secret stays in the browser
Utilities
Marketplace Profit Calculator
See your real net profit per order after Shopee, Lazada and TikTok Shop fees
Thai Business
Meta Tag Analyzer
Audit any page's meta tags and on-page SEO in seconds
SEO Tools
UTM Campaign URL Builder
Build consistent, typo-free campaign links in seconds
Ads Tools
Shipping Label Maker
Create a clean, printable parcel address label with a live preview
Thai Business
Favicon Generator
Turn any image into favicon PNGs, a multi-size favicon.ico and the ready HTML tags
Image & Media Tools
PromptPay QR Generator
Create a Thai PromptPay payment QR from a phone number, ID or e-wallet — free
Thai Business
SEO Tools
9 tools
Meta Tag Analyzer
Audit any page's meta tags and on-page SEO in seconds
SEO Tools
SERP Snippet Preview
See how your title and description look on Google — measured in real pixels
SEO Tools
Keyword Density Checker
Word-frequency and keyword density that works on spaceless Thai text
SEO Tools
Robots.txt Tester
Fetch a site's robots.txt and test if any URL is crawlable
SEO Tools
Schema Markup Generator
Fill a form, get valid JSON-LD ready to paste
SEO Tools
Hreflang Tag Generator
Correct hreflang tags for multilingual websites
SEO Tools
robots.txt Generator
Build a valid robots.txt file for your website in seconds
SEO Tools
Meta Tag Generator
Generate SEO, Open Graph and Twitter meta tags for your page <head>
SEO Tools
Heading Structure Checker
Check any page's H1–H6 heading structure and outline for SEO
SEO Tools
Ads Tools
5 tools
UTM Campaign URL Builder
Build consistent, typo-free campaign links in seconds
Ads Tools
Ad Copy Character Counter
Count your ad copy against the real per-field limits for Google, Facebook, TikTok and LINE
Ads Tools
ROAS & Break-even Calculator
Know your break-even ROAS and real profit before you spend
Ads Tools
Ads Metrics Calculator
Calculate CPC, CPM, CTR, CPA and CVR in one place
Ads Tools
A/B Test Significance Calculator
Stop calling winners on gut feel — test if your A/B result is statistically real
Ads Tools
Link Tools
4 tools
Redirect Chain Checker
Trace every hop of a redirect chain — status, path and where link equity leaks
Link Tools
Bulk HTTP Status Checker
Check the status code, final URL and response time of up to 20 links at once
Link Tools
QR Code Generator
Instant QR codes for URLs, Wi-Fi and text — free, no watermark
Link Tools
Link Analyzer
Analyze every link on a web page — internal, external, dofollow and nofollow
Link Tools
Social Tools
8 tools
Social Post Character Counter
See every platform limit live as you type — with correct Thai counting
Social Tools
Hashtag Counter & Extractor
Extract, dedupe and check every hashtag — Thai tags included
Social Tools
Social Share Preview (OG Card)
See how your link will look when shared on Facebook, X and LINE
Social Tools
Instagram Caption Formatter
Line breaks that survive after you post to Instagram
Social Tools
LINE OA Link & QR Generator
Add-friend links + QR for your LINE Official Account
Social Tools
LINE Flex Message Editor
Design LINE Flex Messages visually and export JSON
Social Tools
Comment & List Winner Picker
Paste comments or a list of names and fairly draw one or more lucky winners
Social Tools
Sales Caption Builder
Turn a few product fields into ready-to-post Thai selling captions
Social Tools
Text & Content Tools
10 tools
Word & Character Counter
Counts Thai words correctly — no spaces needed
Text & Content Tools
Case Converter
UPPER, lower, Title and more in one click — safe for Thai text
Text & Content Tools
URL Slug Generator
Turn any Thai or English title into a clean, SEO-friendly URL slug
Text & Content Tools
Text Cleaner
Strip invisible junk from text pasted from Word or LINE
Text & Content Tools
URL Encoder / Decoder
Encode and decode URLs, Base64 and Thai domains without breaking UTF-8
Text & Content Tools
Dummy Text Generator (Thai & English)
Realistic placeholder text in Thai or English for layout testing
Text & Content Tools
Text Diff / Compare
Compare two texts and highlight every added, removed and changed line
Text & Content Tools
Fancy Text Generator
Turn plain text into fancy Unicode fonts for Instagram, Facebook and TikTok bios
Text & Content Tools
Thai Keyboard Fixer
Fix text typed in the wrong layout — swap Thai ⇄ English using the Kedmanee keyboard
Text & Content Tools
Emoji & Symbol Picker
Browse emojis and special symbols, then click any one to copy it instantly
Text & Content Tools
Utilities
35 tools
TOTP / 2FA Code Generator
Generate 2FA codes offline — your secret stays in the browser
Utilities
Password Generator
Build strong random passwords and test any password
Utilities
Cookie Consent Banner Generator
Copy-paste PDPA/GDPR cookie banner — no code
Utilities
Cookie Inspector
Decode Cookie & Set-Cookie headers into a readable table
Utilities
JSON Formatter & Validator
Beautify, minify and validate JSON in your browser
Utilities
Base64 & Data URI Converter
Encode text, files and images to Base64 — UTF-8 safe, all in your browser
Utilities
Cron Expression Builder
Build and decode cron schedules in plain language
Utilities
DNS Lookup
Check A, MX, TXT, NS and more for any domain
Utilities
Proxy Checker
Test if an HTTP/HTTPS proxy is alive and see its exit IP
Utilities
Disposable Email Checker
Flag temporary and throwaway email domains before they pollute your signups
Utilities
Password Breach Checker
See if a password leaked in a data breach — privately
Utilities
User-Agent Parser & Builder
Parse any User-Agent, or build a realistic one for cross-device QA
Utilities
Card BIN Lookup & Luhn Validator
Check a card number with the Luhn algorithm and identify its network and BIN
Utilities
Random Face Generator
AI-generated human faces for avatars and mockups
Utilities
Percentage Calculator
Work out any percentage — X% of a number, % change, increase or decrease
Utilities
Discount Calculator
Work out the final price after stacked discounts, or find the discount percentage
Utilities
Salary Converter
Convert pay between hourly, daily, weekly, monthly and yearly
Utilities
Age Calculator
Find your exact age in years, months and days, plus the countdown to your next birthday
Utilities
BMI Calculator
Calculate your body mass index and see your healthy weight range
Utilities
Date Difference Calculator
Count the days between two dates, or add and subtract from a date
Utilities
Unit Converter (Thai Land Units)
Convert rai, ngan and square wah plus length, weight, area, volume, temperature and data
Utilities
Unix Timestamp Converter
Convert Unix epoch timestamps to human dates, ISO 8601, RFC 2822 and back
Utilities
Color Contrast Checker
Check WCAG contrast ratio and convert HEX, RGB and HSL colours
Utilities
Image to Base64 Converter
Convert an image to a Base64 data URI in your browser, with ready-to-paste HTML and CSS
Utilities
QR Code Decoder
Read a QR code from an image — upload, drag or paste and see the decoded text
Utilities
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes from any text
Utilities
UUID Generator
Generate random UUID v4 identifiers instantly in your browser
Utilities
Regex Tester
Build and test regular expressions live, with match highlighting and captured groups
Utilities
.htaccess Redirect Generator
Generate 301 and 302 redirect rules for your Apache .htaccess file
Utilities
Privacy Policy & Terms Generator
Generate a Privacy Policy and Terms & Conditions for your website in seconds
Utilities
Spin Wheel Picker
Paste a list of names or prizes and spin the wheel for a fair random winner
Utilities
Merge & Split PDF
Combine several PDFs into one, or split and extract pages — in your browser, nothing uploaded
Utilities
Signature Maker
Draw or type your signature and download it as a transparent PNG
Utilities
Timer, Stopwatch & Pomodoro
Countdown timer, stopwatch with laps, and a Pomodoro focus timer
Utilities
SRT Subtitle Shifter & Converter
Fix out-of-sync subtitles and convert between SRT and VTT
Utilities
Finance Calculators
18 tools
Dividend Calculator
Work out your annual dividend income and net payout after Thai 10% withholding tax
Finance Calculators
Land Transfer Tax Calculator
Estimate Thai Land Department transfer fees, tax and stamp duty in seconds
Finance Calculators
Mortgage Calculator
Work out your monthly home-loan payment, total interest and how much you can afford
Finance Calculators
Car Loan Calculator
Work out your monthly car or motorcycle installment on Thai flat interest
Finance Calculators
Reducing Balance Loan Calculator
Work out your monthly installment, interest and payoff on a reducing-balance loan
Finance Calculators
Compound Interest Calculator
See how your savings grow with compound interest and regular contributions
Finance Calculators
Thai Income Tax Calculator
Estimate your Thai personal income tax for 2568/2025 with allowances and deductions
Finance Calculators
Social Security Calculator (Section 33)
Work out your monthly Thai social security contribution and old-age pension estimate
Finance Calculators
Break-Even Point Calculator
Find how many units and how much revenue you need to cover your costs
Finance Calculators
Selling Price & Margin Calculator
Set a selling price from your cost and target margin or markup, and see the difference between the two
Finance Calculators
Retirement & Inflation Calculator
See how much to save for retirement and how inflation erodes your money
Finance Calculators
Net Salary Calculator
Estimate your real monthly take-home pay after Social Security and income tax
Finance Calculators
Annual Car Tax Calculator
Estimate the annual road tax for a Thai private passenger car (รย.1) from engine size and age
Finance Calculators
Tax Deduction Planner
Plan your 2568/2025 allowances and see how much more SSF, RMF or insurance you can buy and the tax it saves
Finance Calculators
RMF / SSF / ThaiESG Limit Calculator
Work out how much RMF, SSF and ThaiESG you can still buy for the tax year and the tax you would save
Finance Calculators
Overtime Pay Calculator
Work out your OT pay under Thai labour law by rate and OT type
Finance Calculators
Severance Pay Calculator
Estimate the statutory severance and notice pay you are owed when dismissed in Thailand
Finance Calculators
Currency Converter
Convert money and see the latest (daily-indicative) exchange rates for THB and major currencies
Finance Calculators
Thai Business
12 tools
PromptPay QR Generator
Create a Thai PromptPay payment QR from a phone number, ID or e-wallet — free
Thai Business
VAT & Withholding Tax Calculator
Work out Thai VAT 7% and withholding tax, and the net you actually pay
Thai Business
Thai Baht Text Converter
Turn any amount into correct Thai baht words instantly
Thai Business
Thai National ID Validator
Check a Thai national ID or tax ID checksum instantly
Thai Business
Thai Phone Number Formatter
Clean up and validate Thai phone numbers, with +66 and messaging formats
Thai Business
Thai Date Converter (BE ↔ CE)
Convert Buddhist Era and Gregorian years, and format dates in full Thai
Thai Business
Affiliate Link Cleaner
Strip tracking and affiliate junk from any URL — clean links in seconds
Thai Business
Marketplace Profit Calculator
See your real net profit per order after Shopee, Lazada and TikTok Shop fees
Thai Business
Quotation Generator
Create free online quotations with a live preview and print/save to PDF
Thai Business
Invoice Generator
Create free online invoices with a live preview, VAT/withholding tax and print/save to PDF
Thai Business
Receipt / Tax Invoice Generator
Create free online receipts and tax invoices with a live preview and print/save to PDF
Thai Business
Shipping Label Maker
Create a clean, printable parcel address label with a live preview
Thai Business
Image & Media Tools
16 tools
Image Censor
Blur, pixelate or black-box faces, IDs and text — 100% in your browser
Image & Media Tools
Image Resizer
Resize photos to exact pixels or a percentage — free, private, in your browser
Image & Media Tools
Image Compressor
Compress JPG, PNG and WebP images to a smaller file size right in your browser
Image & Media Tools
Image Cropper
Crop and resize photos to any aspect ratio, right in your browser
Image & Media Tools
Rotate & Flip Image
Rotate, straighten and mirror any image right in your browser, then download
Image & Media Tools
Image Filters
Apply one-click photo filters in your browser and download the result — no upload
Image & Media Tools
Image Color & Light Adjuster
Adjust brightness, contrast, saturation, hue and blur, then download — all in your browser
Image & Media Tools
Image Converter
Convert JPG, PNG, WebP and GIF images in your browser — no upload
Image & Media Tools
Favicon Generator
Turn any image into favicon PNGs, a multi-size favicon.ico and the ready HTML tags
Image & Media Tools
Image Color Picker
Pick any HEX, RGB or HSL color from an image with an eyedropper
Image & Media Tools
EXIF Viewer
See the hidden EXIF metadata in your photos — camera, settings and GPS
Image & Media Tools
EXIF Remover
Strip EXIF, GPS and camera metadata from photos before you share them
Image & Media Tools
Meme Generator
Add classic top and bottom captions to any image, right in your browser
Image & Media Tools
Screen Recorder
Record your screen, window or tab with audio — right in the browser, nothing uploaded
Image & Media Tools
Images to PDF
Combine several JPG/PNG/WEBP images into one PDF — in your browser, nothing uploaded
Image & Media Tools
Image Watermark
Add a text or logo watermark to product photos — 100% in your browser
Image & Media Tools
Numerology & Fortune
6 tools
Thai Name Numerology
Analyse a Thai name and surname by lek-sat numerology and check for กาลกิณี letters to avoid
Numerology & Fortune
Phone & Plate Numerology
Score phone numbers and licence plates by Thai numerology, with lucky-pair analysis
Numerology & Fortune
Auspicious Baby Name Generator
Suggest auspicious Thai baby names by birth day and gender, avoiding กาลกิณี letters, each with its meaning
Numerology & Fortune
Auspicious Date Finder
Find good days by Thai weekday tradition for a new car, wedding, housewarming, shop opening or contract
Numerology & Fortune
Daily Lucky Color
Check today's lucky shirt colour, boost colours, the กาลกิณี colour to avoid and the lucky number by weekday, Thai style
Numerology & Fortune
Zodiac Clash Checker (ปีชง)
Check your ปีชง from your real birth date: direct clash, ปีคัก or partial clash, all four clashing zodiac years, and a 12-year forward table
Numerology & Fortune
Home & Living
2 tools
Electricity Bill Calculator
Estimate your monthly Thai home electricity bill on the MEA/PEA progressive tariff, with a tier-by-tier breakdown
Home & Living
Air Conditioner BTU Calculator
Work out the right air conditioner BTU size for your room from its width, length, use and heat load
Home & Living
Education
1 toolsHealth
3 tools
TDEE & BMR Calculator
Estimate your daily calorie needs, plus targets for losing or gaining weight
Health
Ovulation & Period Calculator
Estimate your fertile window, ovulation day and next period dates from your last period
Health
Pregnancy Due Date Calculator
Estimate your due date, gestational age, trimester and countdown
Health