Free tools that respect your privacy

Every tool on Votilo Tools runs entirely inside your browser. No account needed, no tracking. Just open and use.

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.

PDF to JPG Converter

Convert PDF pages to JPG images directly in your browser.

BMI Calculator

Calculate adult BMI and a healthy-weight range from height and weight.

Tip Calculator

Calculate a tip, bill total, and per-person split instantly.

Average Price Calculator

Calculate a new average purchase price after adding to a position.

Risk / Reward Calculator

Compare planned downside and upside from entry, stop, and target prices.

Investment Return Calculator

Calculate profit or loss, return percentage, and value multiple.

Position Size Calculator

Calculate quantity from account size, risk input, entry price, and stop price.

Target Price Return Calculator

Calculate the price change and percentage return from an entry price to a target price.

Stop-Loss Distance Calculator

Measure the price and percentage distance between an entry price and a stop price.

Trading Fee Impact Calculator

Compare gross and net trade results after user-entered buy and sell fees.

FX-Adjusted Investment Return Calculator

Combine asset-price return with user-entered buy and sell exchange rates.

Dividend Yield Calculator

Calculate gross annual dividend yield from annual dividend and price.

Dividend Income Calculator

Calculate gross annual dividend income from quantity and annual dividend per share or unit.