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A complete overview of all 103 tools and pages on ToolKH — organized by category for quick navigation.

Pages

7 pages

PDF Tools

14 tools

Merge PDF

Combine multiple PDF files into one easily.

PDF Split

Split PDF documents by page ranges or extract specific pages into a new file.

PDF to Image

Convert PDF document pages into high-quality PNG or JPEG images.

Compress PDF

Reduce PDF file sizes client-side while preserving structural text or image quality.

Word to PDF

Convert your Microsoft Word DOCX files into standard PDF documents easily.

OCR PDF

Extract text from scanned PDF documents directly in your browser. Supports both English and Khmer Unicode OCR with complete privacy and zero data uploads.

Khmer Text PDF Watermark Tool

Add custom text watermarks to your PDF documents with full Khmer Unicode support, custom sizes, positions, opacity, and rotation.

Protect PDF

Encrypt your PDF documents and set passwords to restrict printing, modifications, or text copying.

Image PDF Watermark Tool

Overlay transparent logo or stamp images onto your PDF pages with custom scaling, opacity, and grid options.

Free PDF Signature

Sign your PDF documents with drawing signatures, typed stylized signatures, or uploaded images client-side.

Add PDF Header, Footer & Page Numbers

Add custom headers, footers, and page numbers to your PDF documents easily online.

PDF to EPUB

Convert your PDF documents to EPUB format with reflowable text or fixed-layout image options completely client-side.

Ebook Reader

Read your EPUB, MOBI, AZW, AZW3, PDF, and Word document files client-side with custom sizes, themes, and dyslexia-friendly font options.

PDF to Kindle Converter

Convert your PDF documents directly into Kindle-compatible MOBI formats or optimized EPUB formats client-side.

QR Code Tools

3 tools

Generator Tools

8 tools

Random Tools

7 tools

Developer Tools

21 tools

Image to ICO

Convert PNG, JPG, or WEBP images into high-quality multi-resolution ICO favicon files fully client-side.

Image Format Converter

Convert image files to PNG, JPEG, or WEBP formats with custom resizing and quality control sliders client-side.

Image Compressor

Compress PNG, JPEG, or WEBP images client-side while preserving visual quality using smart scaling and format optimizations.

Image Resizer

Resize PNG, JPEG, or WEBP images with custom dimensions, percentages, aspect ratio locks, and social media presets client-side.

Image Cropper

Crop PNG, JPEG, or WEBP images online. Supports free-form, circular, square (1:1), 16:9, 4:3, passport size photo crops, and crop multiple images in bulk.

Image Color Picker

Upload any image and pick exact colors with our interactive magnifying loupe. Get formatted HEX, RGB, HSL, and CMYK color codes.

Rotate & Flip Image

Rotate images by 90-degree steps or custom degrees, flip horizontally or vertically, and export client-side.

Batch Rename Images

Rename multiple images in bulk. Apply pattern templates, custom base names, sequential indexes, leading-zero padding, and download as a ZIP file.

Split Image Grid

Split an image into a custom grid (2x2, 2x3, 3x3, etc.) and download the sliced pieces individually or as a ZIP archive.

ID Photo Maker

Convert any portrait photo into a professional ID passport/visa photo. Align with visual face guides, customize background colors, and generate print-ready grid sheets client-side.

Passport Photo Generator

Generate biometric passport photos for US, UK, EU, Canada, and other countries. Adjust with precise face-height alignment overlays, run compliance checks, and compile printable sheets.

Color Palette Generator

Extract beautiful dominant color palettes from any image using AI K-Means clustering. Generate harmonies, copy color codes, and export configurations.

Image to Text Converter

Extract text from images (PNG, JPEG, WEBP) online. Supports both English and Khmer languages using advanced AI OCR or local browser-based OCR with full privacy.

Business Card Generator

Create double-sided, high-resolution name cards. Edit text details, choose designer templates, load logos, generate contact vCard QR codes, and export print-ready PDFs or JPEGs instantly.

Label Generator Pro

Design and print custom labels, barcode tags, price stickers, and address badges in bulk. Choose from standard presets (Avery), configure custom sizes, import CSV data, and export print-ready PDFs.

Stamp Maker

Create professional official stamps with Khmer Unicode support. Choose from 8 shapes (circle, rectangle, seal, hexagon, and more), customize arc text, colors, borders, and export as transparent PNG or PNG with background.

Printable Calendar Generator

Design and print custom monthly or yearly calendars. Customize layout, orientation, styles, and download as PNG/PDF with full Khmer support.

Image Upscaler

Upscale and enlarge images 2×, 3×, or 4× online using multi-step high-quality resampling with optional sharpening filter. 100% client-side, completely private.

Certificate Generator Pro

Create high-resolution certificates of achievement, graduation, or appreciation. Features full Khmer Unicode & English typography, custom font sizes, background colors, border frames, logo/signature uploads, 1-click presets with AI-generated sample data for demonstration testing, and bulk PDF exports.

Image Information Detection

Inspect detailed image specifications, EXIF camera shooting metadata, GPS location coordinates, dominant color palettes, raw EXIF tag browser, and clean privacy metadata client-side.

Image Viewer Pro

Upload up to 50 images and browse them in a beautiful grid or list gallery. Open a fullscreen lightbox with zoom (up to 5×), pan by dragging, free rotation, keyboard navigation, interactive thumbnail strip, and one-click Download as JPG. Supports 20+ formats including HEIC, AVIF, TIFF, RAW (CR2, NEF, ARW, DNG…), ICO, SVG, JXL and more. 100% client-side.

YouTube Tools

9 tools

YouTube Downloader

Download YouTube videos in various qualities directly from the browser.

YouTube Thumbnail Downloader

Download YouTube video thumbnails in all available resolutions — Max Res 1280×720, HQ, MQ, SD, and default. No sign-in required.

YouTube Tag Generator

Generate optimized YouTube tags from your video title and keywords. Smart keyword expansion with real-time 500-character limit tracker and flexible copy formats. Free, no sign-in required.

YouTube Hashtag Generator

Generate niche-optimized YouTube hashtags from your video title and keywords. Live YouTube title preview, niche auto-detection, relevance scoring, and description-block export. Free, no sign-in required.

YouTube SEO Score Checker

Analyze and check your YouTube SEO score. Audit title keywords, description lengths, tag counts, and edit metadata live to optimize relevance.

YouTube Keyword Suggestion Tool

Generate high-volume, low-competition keywords for your YouTube videos. Get autocomplete suggestions, related topics, question queries, and SEO volume difficulty metrics.

YouTube Viral Video Idea Generator

Brainstorm high-CTR, high-retention YouTube video concepts. Generate engaging titles, visual thumbnail strategies, and first-15-seconds script hooks tailored to your niche.

YouTube Trending Topic Finder

Discover rising search terms and trending video topics on YouTube. Analyze real-time search volume momentum, competition levels, and recommended video angles.

YouTube Video Keyword Generator

Brainstorm search-optimized keyword tags for your YouTube videos using AI. Discover focus phrases, long-tail variations, and questions queries with volume metrics.

Data Tools

25 tools

Number to Text Converter

Convert numbers into spelled-out words in Khmer (words & numerals) and English. Supports decimals, negative values, currencies (Riels, Dollars), and bulk text list processing client-side.

CSV Cleaner & Formatter

Clean, format, and fix messy CSV or TSV files online. Trim whitespace, remove empty rows, deduplicate records, reformat casing per column, select/exclude columns, and export clean CSV or TSV files. 100% client-side.

Khmer Unicode Cleaner

Fix broken Khmer characters order, remove redundant vowels or double subscripts, translate digits, and normalize zero-width spaces client-side with complete privacy.

Khmer Phone Number Formatter

Format, validate, and clean Khmer phone numbers. Convert digits between Khmer and Arabic, identify mobile operators, and export formatted lists with complete privacy.

Name Splitter

Split full names into Prefix, First Name, Middle Name, Last Name, and Suffix. Supports both Western and Eastern/Khmer naming structures in bulk with complete privacy.

Date Cleanup and Formatter

Clean up, convert, and translate dates into Khmer Unicode or English. Supports full-text, short-text, and numeric output formats (DD-MM-YYYY / MM-DD-YYYY), Khmer month names, Khmer numeral digits, ISO standard, bulk processing, and CSV export — 100% client-side.

Text Cleanup & Formatter

Clean up messy text, format spaces, remove line breaks, trim line endings, strip special characters, and convert text casing client-side. Supports well-known languages.

Text Splitter & Columns Converter

Split multi-delimiter records into structured table columns (Excel-like Text to Columns) or chunk documents by characters, words, or lines. Full support for English and Khmer Unicode text with clean CSV/Excel exports.

Age Calculator

Calculate your exact age in years, months, weeks, days, hours, minutes, and seconds. Find next birthday countdown, zodiac signs, and fun life statistics. Supports Khmer Unicode.

Working Days Calculator

Calculate the exact number of working days, weekends, and holidays between two dates. Customize your work week, add custom holiday exclusions, and calculate work hours. Supports Khmer Unicode.

Email Cleaner & Validator

Clean, format, and validate lists of email addresses. Remove duplicates, filter by domain, flag disposable or generic role emails, normalize Gmail address aliases, and export clean lists client-side.

Duplicate Line Finder

Find, extract, and remove duplicate entries or repeating lines from your text lists. Toggle case-sensitivity, isolate uniques or duplicates, see frequency distribution, and export clean lists.

Loan Calculator & Amortization Scheduler

Calculate monthly payments, total interest, and payoffs for mortgages or loans. Add extra monthly payments to visualize payoff times and interest savings with interactive SVG schedules.

Working Hours & Overtime Calculator

Calculate daily working hours, unpaid breaks, overtime, and gross pay. Customize global or daily hourly rates, configure OT multipliers, visualize earnings with charts, and export printable timesheets.

Salary Calculator & Net Pay Estimator

Estimate your monthly take-home (net) pay from gross salary. Configure income tax rate, NSSF/social security contributions, custom allowances, and multiple deductions. View annual projection charts and export pay breakdowns as CSV.

Khmer Lunar Calendar

Convert Gregorian dates to Khmer Chhankitek (ចន្ទគតិ) lunar calendar with holidays, moon phases, and zodiac info.

Money Saving Calculator

Calculate future investment value or target savings goals with compound interest. Adjust for inflation, configure regular deposits and compounding intervals, and visualize savings growth with interactive charts.

Retirement Calculator

Plan your retirement roadmap. Model your pre-retirement savings accumulation, post-retirement drawdown schedules, inflation rate adjustments, and target nest egg goals.

List Comparison & Difference Tool

Compare two lists of names, emails, numbers, or tags. Filter duplicates, extract unique items only in A or B, isolate common matches, and download custom text/CSV reports.

Table to SQL Insert Converter

Convert CSV, JSON or spreadsheet data into SQL INSERT statements online. Paste an optional CREATE TABLE SQL script to automatically parse columns, map fields, and format value literals (strings, numbers, booleans, dates) securely client-side.

Data Formatter

Format and convert CSV, TSV, TXT, or Excel tabular spreadsheet copy-pastes into other clean data layouts. Output structure-mapped SQL INSERT statements, beautified JSON arrays, Markdown documentation tables, or clean CSV sheets.

SQL to Table Diagram Visualizer

Instantly convert raw CREATE TABLE SQL scripts into interactive, draggable database schema diagrams. Visualize foreign key relations, inspect data types, and export as JPG or PDF.

Date Time Splitter

Free online Date & Time Splitter. Instantly separate combined date-time values into individual Date and Time columns. Supports ISO 8601, ordinal dates (1st, 2nd, 3rd), MM/DD/YYYY, DD/MM/YYYY, YYYY-MM-DD, 12-hour AM/PM, 24-hour formats, bulk list processing up to 50 rows, and CSV export. 100% client-side, no login required.

Phone Number Cleaner Pro

Clean, validate, and standardize Cambodian phone numbers in bulk. Identify operators (Smart, Cellcard, Metfone, Seatel, Cootel), remove duplicates, convert Khmer digits, choose from 5 output formats, and export clean lists as CSV or TXT. 100% client-side.

Khmer Font Converter (Limon ↔ Unicode)

Convert legacy Khmer fonts (Limon S1/S2/F1/F2, ABC Khmer, Kbach) to standard Khmer Unicode and back in real time. Features automatic pre-vowel reordering, subscript coeng alignment, Khmer digits to Arabic numerals converter, live font preview options (Kantumruy Pro, Battambang, Moul), keystroke mapping reference, and bilingual UI (English & Khmer).

AI Tools

16 tools

AI Social Media Caption Writer

Generate creative and engaging social media captions in English or Khmer. Choose length, tone, and platforms with hashtag suggestions and copy options.

AI Business Name Generator

Generate catchy, memorable, and brandable business name ideas powered by AI. Select industries, naming styles, and languages to find the perfect name with domain availability suggestions.

AI YouTube Title Writer

Generate high-CTR, viral, and search-optimized YouTube video titles using AI. Supports Khmer Unicode and other languages. Select hooks, niches, and languages to find titles that get views.

YouTube AI Writer All in One

Generate matching titles, search-optimized video descriptions, tags, and hashtags in a single dashboard from a single topic. Supports Khmer Unicode.

Remove Background Image

Remove backgrounds from images automatically using AI. Select between multiple API providers or use your own API keys. 100% private and customizable.

Excel Formula Generator

Instantly generate complex formulas for Excel, Google Sheets, or Airtable from plain English or Khmer descriptions. Explain existing formulas step-by-step. Supports Khmer Unicode.

AI Image Detector & Analyzer

Upload and analyze any image to determine if it was created by artificial intelligence (Midjourney, Stable Diffusion, DALL-E) or captured by a real camera. Features EXIF inspections, high-resolution analysis, and API-cascading methods.

Excel & CSV Cleanup AI

Clean, format, and normalize your messy spreadsheet rows instantly using advanced AI engines. Standardize casing, fix emails/phone numbers, trim whitespaces, or supply custom prompts completely client-side.

AI Text Join & Concatenate

Join and concatenate multiple text segments into one cohesive piece using AI. Provide a custom prompt to control tone, style, and format. Supports Khmer Unicode and English.

AI Job Description Generator

Instantly generate professional, structured, and customized job descriptions powered by AI. Fully supports English and Khmer Unicode script. Select experience levels, departments, key skills, and localized tones.

AI Text Summarizer

Instantly summarize long articles, documents, or paragraphs using advanced AI. Fully supports English and Khmer Unicode script. Customize summary length, target format, and language script.

AI Text Rewriter Pro

Rewrite, rephrase, expand, or condense text with professional AI options. Fully supports English and Khmer Unicode script, features side-by-side visual diff comparisons, and saves local history.

AI SQL Generator

Generate SQL queries from plain English or Khmer descriptions, or explain any SQL query step-by-step. Supports MySQL, PostgreSQL, SQLite, SQL Server (T-SQL), and Oracle. Includes schema input, dialect selector, and visual syntax highlighting.

AI Prompt Generator

Generate high-quality, detailed prompts for ChatGPT, Midjourney, Claude, Stable Diffusion, and other AI models.

AI Signature Generator

Generate artistic and realistic handwritten signatures from text. Customize styles, skew/slant angles, play writing animations, or draw manually.

AI Image to Prompt Generator

Upload any image and reverse-engineer it into optimized prompt texts for Midjourney, DALL-E 3, and Stable Diffusion using AI visual analysis.

103 Tools & Counting

We add new tools every week. Missing something? Let us know!