JebaTech — 55 free browser tools

Compress images, format JSON, generate QR codes, convert units and 50 more utilities. Every tool runs entirely inside your browser: no uploads, no accounts, no tracking. JavaScript is required to run the tools themselves.

Media & image processing

Color Palette Extractor — Pull the dominant colours out of any photo as HEX, RGB and HSL codes.
Image Compressor — Shrink PNG, JPG and WebP files with a live quality slider and before/after size comparison.
Image Format Converter — Convert between WebP, PNG, JPG and AVIF in memory, then download with one click.
Image Resizer & Crop — Resize and crop images with preset social aspect ratios like 1:1, 16:9 and 4:5.
SVG to PNG Converter — Render SVG code or files to crisp high-resolution PNG at any scale factor.

Developer & code utilities

Base64 Encoder / Decoder — Encode and decode text, images and files to and from Base64 strings and data URIs.
Code Minifier — Strip whitespace, line breaks and comments from HTML, CSS and JavaScript.
Cron Expression Parser — Translate a cron expression into plain English and preview its next run times.
HTML Entity Encoder — Encode and decode HTML entities so markup displays as literal text.
JSON Formatter & Validator — Beautify, validate and minify JSON with precise, actionable syntax error reporting.
JWT Decoder — Decode and inspect JSON Web Token headers, payloads, claims and expiry safely.
Markdown Live Previewer — Write Markdown in a split pane with live HTML rendering and an HTML export button.
Regex Tester — Test regular expressions live with match highlighting, groups and a cheat sheet.
SQL Formatter — Beautify and indent SQL queries with keyword casing and one-click minify.
URL Encoder / Decoder — Percent-encode or decode URLs, query strings and URI components safely.

Text & writing utilities

Case Converter — Switch text between UPPERCASE, lowercase, Title Case, sentence case, camelCase and kebab-case.
Clean Slug Generator — Turn any title into a clean, accent-free, SEO-friendly URL slug instantly.
Find and Replace — Bulk find and replace across text with regex, case and whole-word options.
Lorem Ipsum Generator — Generate placeholder paragraphs, sentences or words with a one-click copy button.
Online Notepad — A distraction-free notepad that autosaves in your browser. No account needed.
Remove Duplicate Lines — Strip duplicate lines, trim blanks and optionally sort the result.
Text Diff Checker — Compare two texts side by side with additions and deletions highlighted in green and red.
Text to Speech — Read any text aloud with your browser's built-in voices and download-free playback.
Word & Character Counter — Live counts for words, characters, sentences, paragraphs, reading and speaking time.

Security & everyday utilities

Crypto Hash Generator — Compute SHA-256, SHA-384, SHA-512, SHA-1 and MD5 hashes right in the browser.
QR Code Studio — Create custom QR codes for links, text and Wi-Fi networks with SVG and PNG download.
Strong Password Generator — Build cryptographically random passwords with a live entropy strength meter.
Unix Timestamp Converter — Live epoch clock with two-way conversion between Unix time and readable UTC/local dates.
UUID / GUID Generator — Generate RFC 4122 compliant UUID v4 identifiers individually or in bulk.

Calculators

Age Calculator — Find an exact age in years, months, days, hours and the next birthday countdown.
BMI Calculator — Calculate Body Mass Index in metric or imperial units with the WHO category scale.
Date Difference Calculator — Days, weeks, months and business days between any two dates, plus date arithmetic.
Discount Calculator — Sale price, amount saved and the effective percentage off, including stacked discounts.
Loan & EMI Calculator — Monthly repayment, total interest and a full amortisation schedule for any loan.
Percentage Calculator — Work out percentages, increases, decreases and what percent one number is of another.
Random Number Generator — Draw cryptographically random numbers in any range, with or without duplicates.
Tip Calculator — Split a bill, add a tip percentage and get the exact amount each person owes.

Converters

CSV to JSON Converter — Convert CSV to JSON and JSON back to CSV with delimiter and header detection.
Morse Code Translator — Translate text to Morse code and back, with audible playback at any speed.
Number Base Converter — Convert between binary, octal, decimal, hexadecimal and any base from 2 to 36.
Roman Numeral Converter — Convert numbers to Roman numerals and back, from 1 to 3,999,999.
Temperature Converter — Convert between Celsius, Fahrenheit, Kelvin and Rankine instantly.
Text to Binary Converter — Convert text to binary, hexadecimal, octal and decimal byte values and back.
Unit Converter — Convert length, weight, area, volume, speed and data units with live precision.

Design & CSS utilities

Border Radius Generator — Shape organic blobs and rounded corners with per-corner CSS radius control.
Color Contrast Checker — Test any colour pair against WCAG AA and AAA contrast ratios for accessibility.
Color Converter — Convert any colour between HEX, RGB, HSL, HSV and CMYK with a live preview.
CSS Box Shadow Generator — Design layered box shadows with live preview and copy the exact CSS.
CSS Gradient Generator — Build linear and radial CSS gradients visually and copy the ready-made code.
Favicon Generator — Turn any image into a full favicon set with ready-to-paste HTML tags.

PDF tools

Extract PDF Pages — Keep, drop or reorder pages and save the result as a brand-new PDF.
Image to PDF — Turn JPG, PNG or WebP images into a single PDF with your choice of page size and margin.
Merge PDF — Combine several PDFs into one file, in the order you choose, without uploading anything.
PDF to Text — Pull the plain text out of a PDF, page by page, ready to copy or download.
Split PDF — Break one PDF into separate files by page, by fixed size or by custom ranges, delivered as a ZIP.