All Tools
Browse all free browser-local tools on Votilo Tools. No account needed, no tracking.
JSON Formatter & Validator
Format, validate, and minify JSON in your browser.
Character & Word Counter
Count characters, words, lines, and reading time.
Base64 Encoder / Decoder
Encode text or decode Base64 strings instantly.
URL Encoder / Decoder
Encode or decode URLs and query string parameters.
Unix Timestamp Converter
Convert Unix timestamps to readable dates and back.
Case Converter
Convert text to UPPER, lower, Title, camelCase, snake_case, and more.
Line Sorter & Deduplicator
Sort, reverse, and deduplicate lines of text.
Slug Generator
Turn any title or phrase into a clean URL slug.
Whitespace Cleaner
Trim, normalize, and remove extra whitespace from text.
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text in seconds.
Markdown Preview
Write Markdown and see a live HTML preview side-by-side.
UUID Generator
Generate cryptographically secure UUIDs (v4) instantly.
Hash Generator
Generate SHA-1, SHA-256, SHA-384, or SHA-512 hashes.
HTML Escape / Unescape
Escape special characters for safe HTML insertion.
Color Converter
Convert colors between HEX, RGB, and HSL.
Number Base Converter
Convert numbers between decimal, binary, octal, and hex.
Regex Tester
Test regular expressions and see matches highlighted live.
Date Difference Calculator
Calculate the difference between two dates in days, weeks, months.
Percentage Calculator
Calculate percentages, percentage of, and percentage change.
Password Generator
Generate strong, random passwords with your chosen settings.
CSV Viewer
Paste CSV data and view it as a formatted table.
JSON Minifier
Minify JSON to the smallest possible size and see byte savings.
JSON to CSV
Convert a JSON array of objects into a CSV spreadsheet.
CSV to JSON
Convert CSV data into a JSON array of objects.
JWT Decoder
Decode and inspect JWT tokens without verifying the signature.
URL Parser
Break a URL into its components: protocol, host, path, query, hash.
Query String Parser / Builder
Parse URL query strings into key-value pairs, or build them from scratch.
CSS Box Shadow Generator
Build box-shadow values visually with sliders and a live preview.
CSS Clamp Generator
Generate responsive clamp() values for fluid typography and spacing.
CSS Gradient Generator
Create linear and radial CSS gradients visually with color stops.
Unit Converter
Convert between length, weight, temperature, and volume units.
Color Contrast Checker
Check foreground/background color contrast for WCAG AA and AAA.
Aspect Ratio Calculator
Simplify pixel dimensions to a ratio, or scale a ratio to a size.
Text Splitter
Split long text into readable chunks under a character limit.
Text Diff Checker
Compare two texts line by line and highlight every change.
Word Frequency Analyzer
Count repeated words and rank them by frequency.
Find & Replace
Replace text in bulk with case, whole-word, and regex options.
List Comparator
Find shared and unique items across two line-separated lists.
Subtitle Cleaner
Turn SRT or VTT subtitles into clean transcript text.
SRT ↔ VTT Converter
Convert subtitle files between SRT and WebVTT text formats.
CSS Minifier
Remove comments and unnecessary whitespace from CSS.
Image Resizer
Resize images to fit maximum dimensions without distortion.
Image Format Converter
Convert images locally between PNG, JPEG, and WebP.
Random Number Generator
Generate secure random integers or decimals in any range.
Image Prompt Builder
Combine visual details into a clear, reusable image prompt.
Age Calculator
Calculate exact age in years, months, and days from a birth date.
Business Days Calculator
Count business days between two dates, or add N business days to a date.
Random List Picker
Pick one or more random items from a list.
Screen PPI Calculator
Calculate the pixel density (PPI) of any display from its resolution and size.
Add Prefix / Suffix to Lines
Prepend or append text to every line at once.
CSS Border Radius Builder
Visually set corner radii and copy the CSS border-radius rule.
Color Palette Generator
Generate complementary, triadic, analogous, and monochromatic palettes from any color.
JS String Escape / Unescape
Escape or unescape special characters in JavaScript strings.
HTML Minifier
Minify HTML by removing comments and collapsing whitespace.
SQL String Escape
Escape a string value for safe inclusion in SQL queries by dialect.
File Hash Checker
Generate SHA-1, SHA-256, or SHA-512 checksums for any local file.
Image Metadata Viewer
Read EXIF data and dimensions from a JPEG image in your browser.
Image Cropper
Crop any image by drawing a selection or entering pixel coordinates.
Image Rotate & Flip
Rotate 90°/180° and flip images horizontally or vertically.
CSV Column Extractor
Select and extract specific columns from a CSV file.
CSV Deduplicator
Remove duplicate rows from a CSV with exact or case-insensitive matching.
Number Sequence Generator
Generate arithmetic, geometric, Fibonacci, prime, or power-of-2 sequences.
Work Hours Calculator
Enter start time, end time, and breaks for each day to total your weekly hours.
ISO Week Number
Find the ISO week number for any date, or look up dates for any week.
Date Format Converter
Convert any date or Unix timestamp to 14 different date formats at once.
JSON Flatten / Unflatten
Flatten nested JSON to dot-notation keys, or unflatten back to nested objects.
Text to JSON Lines
Convert plain text lines into JSON Lines (JSONL) format.
Margin & Markup Calculator
Calculate profit margin, markup, and selling price from cost and price.
Compound Interest Calculator
Calculate future value and total interest for any compounding frequency.
Loan Payment Calculator
Calculate monthly payments, total interest, and an amortization schedule.
SVG Viewer
Paste or load an SVG file and render it instantly in your browser.
SVG to PNG
Convert SVG markup to a PNG image entirely in your browser.
CSV Row Filter
Filter CSV rows by column conditions — contains, equals, regex, and more.
CSV Sorter
Sort CSV rows by one or more columns, ascending or descending.
CSV Column Renamer
Rename the column headers in a CSV file without changing the data.
JSON Pretty Diff
Compare two JSON documents structurally, ignoring whitespace and key order.
GCD & LCM Calculator
Find the Greatest Common Divisor and Least Common Multiple of two or more integers.
Decimal ↔ Fraction Converter
Convert decimal numbers to fractions, or fractions to decimals, with simplification.
Statistics Calculator
Calculate mean, median, mode, standard deviation, and more for a set of numbers.
Timezone Converter
Convert any date and time to 29 timezones at once.
Unicode Inspector
Break text into Unicode code points and see the name and hex value of each character.
CSS Unit Converter
Convert between px, rem, em, vw, vh, pt, pc, and % in real time.
CSV to Markdown Table
Convert CSV data into a formatted Markdown table instantly.
Image to Base64
Convert any image file to a Base64-encoded string or data URL.
Line Deduplicator
Remove duplicate lines from any block of text.
Text Extractor
Pull emails, URLs, IPs, and numbers out of any text.
Cron Explainer
Translate any cron expression into plain English.
Roman Numeral Converter
Convert numbers to Roman numerals and back.
Morse Code Translator
Encode text to Morse code and decode Morse back to text.
Text ↔ Binary
Convert text to binary bit strings and binary back to text.
XML Formatter
Pretty-print or minify XML with configurable indentation.
XML to JSON
Convert XML documents to JSON with one click.
IP Subnet Calculator
Calculate network address, broadcast, host range, and mask from CIDR.
String Similarity
Measure how similar two strings are using multiple algorithms.
CSS Specificity Calculator
Analyse CSS selector specificity and compare two selectors.
JSON to Table
Render a JSON array of objects as an interactive HTML table.
Currency Formatter
Format numbers as currency strings for any locale and currency.
CSV Joiner
Join two CSV or TSV tables by matching key columns.
JSONL Validator
Validate JSON Lines record by record and normalize valid data.
Image Color Picker & Palette Extractor
Pick pixel colors and extract a representative palette from any image.
Meta Tag Analyzer
Analyze metadata in pasted HTML without fetching a URL.
Open Graph Preview
Create a neutral sharing preview from pasted HTML or entered metadata.
robots.txt Analyzer
Parse and simulate a robots.txt file without fetching any URL.
Sitemap XML Analyzer
Analyze pasted sitemap XML without fetching any URL.
Structured Data Inspector
Inspect pasted JSON-LD or HTML without fetching a URL.
HTTP Headers Analyzer
Inspect pasted HTTP headers without contacting a server.
Security Headers Analyzer
Review pasted HTTP security headers without scanning a server.
Cache-Control Analyzer
Inspect pasted Cache-Control values without fetching any URL.
CSP Analyzer
Inspect pasted Content-Security-Policy headers without fetching any URL.
Cookie Analyzer
Inspect pasted Set-Cookie headers without contacting a server.
Permissions-Policy Analyzer
Inspect pasted Permissions-Policy headers without contacting a server.
Referrer-Policy Analyzer
Inspect pasted Referrer-Policy headers without contacting a server.
CORS Analyzer
Inspect pasted CORS response headers without contacting a server.
HSTS Analyzer
Inspect pasted Strict-Transport-Security headers without contacting a server.
Cross-Origin Isolation Analyzer
Inspect pasted COOP, COEP, and CORP headers without contacting a server.
QR Code Generator
Create QR codes for text, URLs, and Wi-Fi entirely in your browser.
QR Code Scanner
Scan QR codes from an image or camera without uploading anything.
Image Compressor
Compress JPEG, PNG, and WebP images locally in your browser.
Favicon Generator
Create favicon.ico and common PNG icon sizes from one image.
Merge PDF
Combine multiple PDF files into one document in your browser.
Split PDF
Split a PDF into page ranges and download separate PDF files.
Image to PDF
Turn JPG, PNG, or WebP images into one PDF.