# Vajba

> 200 free browser tools that run entirely in your browser. Files never leave your device, there are no accounts, no uploads, and no tracking.

Vajba is a directory of standalone single-page web apps for everyday tasks: PDF and image editing, format conversion, calculators, developer utilities, generators, timers, and games. Every tool is a static HTML page that processes your input locally in JavaScript. The site is hosted in the EU (Denmark, on one.com), uses no cookies, ships no analytics, and has no user accounts.

Use the category pages below to browse tools by purpose. For the complete machine-readable catalog of all 200 tools, see /llms-full.txt.

## Image tools

- [All image tools](https://vajba.com/image-tools/): 40 tools for editing, converting, compressing, and inspecting images. Files never leave your browser.
- [Photo Editor](https://vajba.com/image-editor/): in-browser photo editor that opens and develops RAW files, with layers, curves, HSL, and filters.
- [Compress Image](https://vajba.com/compress-image/): reduce JPG, PNG, and WebP file size with adjustable quality and batch processing.
- [Compress Video](https://vajba.com/compress-video/): shrink MP4 and MOV video to an exact target size, with presets for Discord and email.
- [Image Resizer](https://vajba.com/image-resizer/): resize images to exact pixel dimensions while preserving quality.
- [Image Converter](https://vajba.com/image-converter/): convert HEIC, PNG, WebP and more to JPG, PNG, WebP, AVIF or GIF, hundreds at a time, keeping photo dates and correct iPhone colours.
- [Color Picker](https://vajba.com/color-picker/): extract HEX codes, RGB values, and color palettes from any image.
- [Remove EXIF](https://vajba.com/remove-exif/): strip GPS coordinates and camera metadata from photos before sharing.
- [Video Editor](https://vajba.com/video-editor/): trim and combine clips on a timeline, add transitions, text, and music, then export the finished video.

## PDF tools

- [All PDF tools](https://vajba.com/pdf-tools/): 16 tools for compressing, converting, merging, splitting, signing, and protecting PDFs. Files never leave your browser.
- [Compress PDF](https://vajba.com/compress-pdf/): shrink image-heavy PDFs with quality-level preview before downloading.
- [PDF to Word Converter](https://vajba.com/pdf-to-word-converter/): convert PDF to editable .docx without uploading the file.
- [Merge PDF](https://vajba.com/merge-pdf/): combine multiple PDFs with drag-to-reorder and page preview.
- [Split PDF](https://vajba.com/split-pdf/): extract pages, split by range, or break a PDF into individual files.
- [PDF to JPG Converter](https://vajba.com/pdf-to-jpg/): convert each PDF page to a high-quality JPG, downloadable individually or as ZIP.
- [Protect PDF](https://vajba.com/protect-pdf/): add password protection and restrict printing, copying, or editing.

## Text tools

- [All text tools](https://vajba.com/text-tools/): 15 tools for counting, formatting, transforming, and analysing text.
- [Online Notepad](https://vajba.com/notepad/): take notes with autosave in your browser, multiple tabs, find and replace, and TXT download.
- [Word Counter](https://vajba.com/word-counter/): live word, character, sentence, and paragraph counts with reading time and keyword density; also opens Word, PDF, and text files without uploading them.
- [Character Counter](https://vajba.com/character-counter/): character counting with platform limits for X, Instagram, LinkedIn, Bluesky, and SMS; marks the text that does not fit.
- [Case Converter](https://vajba.com/case-converter/): convert between upper, lower, title, sentence, camel, snake, and kebab case.
- [Markdown Editor](https://vajba.com/markdown-editor/): write Markdown with side-by-side live preview and HTML export.
- [Em Dash Remover](https://vajba.com/em-dash-remover/): replace em dashes and en dashes with regular hyphens.
- [ChatGPT Text Converter](https://vajba.com/chatgpt-text-converter/): strip bold, headers, bullets, and other formatting from AI-generated text.

## Developer tools

- [All developer tools](https://vajba.com/dev-tools/): 45 tools for JSON, encoding, hashing, regex, code formatting, and developer utilities.
- [JSON Formatter](https://vajba.com/json-formatter/): format, validate, minify, and convert JSON with structural feedback.
- [Regex Tester](https://vajba.com/regex-tester/): test JavaScript regular expressions with live highlighting, capture groups, and replace mode.
- [Base64 Encode & Decode](https://vajba.com/base64/): encode or decode text and files to and from Base64.
- [Hash Generator](https://vajba.com/hash-generator/): generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files locally.
- [JWT Decoder](https://vajba.com/jwt-decoder/): inspect a JWT header, payload, and expiration without sending the token to a server.
- [Diff Checker](https://vajba.com/diff-checker/): compare text or code side-by-side with inline and unified diff views.
- [Hide Message in Image](https://vajba.com/hide-message-in-image/): hide a secret text message inside a PNG using steganography, with optional password encryption.

## Calculators

- [All calculators](https://vajba.com/calculators/): 17 calculators for finance, health, dates, and unit conversion.
- [Loan Calculator](https://vajba.com/loan-calculator/): monthly payment, total interest, and full amortization schedule for any loan.
- [BMI Calculator](https://vajba.com/bmi-calculator/): body mass index with the WHO reference scale, metric and imperial.
- [Percentage Calculator](https://vajba.com/percentage-calculator/): percent of, percent change, discount, and tip math.
- [VAT Calculator](https://vajba.com/vat-calculator/): add or remove VAT at any rate with country presets.
- [Age Calculator](https://vajba.com/age-calculator/): exact age in years, months, days, hours, and minutes from a date of birth.
- [Compound Interest Calculator](https://vajba.com/compound-interest-calculator/): visualize investment growth with monthly contributions and inflation.

## Generators

- [All generators](https://vajba.com/generators/): 10 generators for QR codes, passwords, invoices, calendars, fake data, and more.
- [QR Code Generator](https://vajba.com/qr-code-generator/): QR codes for URLs, Wi-Fi, vCards, and text with custom colors.
- [Password Generator](https://vajba.com/password-generator/): cryptographically secure passwords with configurable length, symbols, and bulk output.
- [Invoice Generator](https://vajba.com/invoice-generator/): create and download a PDF invoice with logo, line items, tax, and bank details.
- [Lorem Ipsum Generator](https://vajba.com/lorem-ipsum-generator/): placeholder text by paragraphs, sentences, or words.
- [Fake Data Generator](https://vajba.com/fake-data-generator/): safe fictional names, emails, and UUIDs for seeding test databases; exports to JSON, CSV, SQL.
- [Barcode Generator](https://vajba.com/barcode-generator/): Code 128, EAN-13, UPC-A, Code 39 and more, as PNG or SVG.

## Audio tools

- [All audio tools](https://vajba.com/audio-tools/): 10 in-browser audio utilities. Files never leave your browser.
- [MP4 to MP3 Converter](https://vajba.com/mp4-to-mp3/): pull the audio track out of MP4, MOV, MKV, and WebM video as an MP3 at up to 320 kbps.
- [Audio Converter](https://vajba.com/audio-converter/): convert audio between MP3, WAV, M4A, FLAC, and OGG, lossless or at the bitrate you pick.
- [Guitar Tuner](https://vajba.com/guitar-tuner/): microphone tuner with a cents needle for guitar, bass, ukulele, violin and more, plus a chromatic mode and reference tones.
- [BPM Counter](https://vajba.com/bpm-counter/): tap along to a song to count its BPM, with tempo marking, delay times and a metronome at the tapped tempo.
- [Mic Test](https://vajba.com/mic-test/): test your microphone with a live waveform and level meter, then record and play back your voice.
- [White Noise Generator](https://vajba.com/white-noise/): white, pink or brown noise with a tone control, slow swell, sleep timer and WAV export.
- [Speaker Test](https://vajba.com/speaker-test/): check speakers or headphones with left, right and surround tones, live meters, pink noise and a sweep.
- [Tone Generator](https://vajba.com/tone-generator/): play a sine, square, triangle or sawtooth tone at any frequency, sweep it, and download it as a WAV.
- [Audio Trimmer](https://vajba.com/audio-trimmer/): cut MP3, WAV, and M4A clips with preview before download.
- [Audio Merger](https://vajba.com/audio-merger/): join multiple audio files with crossfades and drag-to-reorder.

## Everyday tools

- [All everyday tools](https://vajba.com/everyday-tools/): 10 timers, planners, and quick utilities.
- [Online Alarm Clock](https://vajba.com/alarm-clock/): set an alarm for any time with sounds, snooze and daily repeat, ringing right in the tab.
- [Time Zone Meeting Planner](https://vajba.com/timezone-meeting-planner/): suggests the best meeting time across cities, weighing work hours, sleep and weekends.
- [Pomodoro Timer](https://vajba.com/pomodoro/): customizable work and break intervals with session tracking and audio alerts.
- [Countdown](https://vajba.com/countdown/): bookmark-able countdown to any future date or time.
- [Stopwatch & Timer](https://vajba.com/stopwatch/): stopwatch with lap times plus a countdown timer with keyboard shortcuts.

## Fun

- [All fun tools](https://vajba.com/fun/): 14 games, puzzles, and toys for the browser.
- [2048](https://vajba.com/2048/): the classic tile-merging puzzle with keyboard and swipe controls.
- [Sudoku](https://vajba.com/sudoku/): free puzzles from Easy to Evil, graded by technique, with hints that teach the next step.
- [Typing Speed Test](https://vajba.com/typing-speed-test/): WPM test on words, sentences or numbers, 15 seconds to 5 minutes, with accuracy and a speed chart.
- [Backgammon](https://vajba.com/backgammon/): classic board game against a smart AI or a local friend.
- [Word Clock](https://vajba.com/word-clock/): fullscreen clock that displays the time as illuminated words.
- [Word Rush](https://vajba.com/word-rush/): timed 5-letter word game with bonus time and streaks.

## Automotive

- [All automotive calculators](https://vajba.com/automotive/): 28 calculators for performance car math, each validated against a published reference with its real-world accuracy stated.
- [Tire Size Calculator](https://vajba.com/automotive/tire-size-calculator/): compare two tire sizes drawn to scale, with the speedometer and odometer error the swap causes.
- [Gear Ratio Calculator](https://vajba.com/automotive/gear-ratio-calculator/): rpm in every gear at a given speed, shift-drop rpm, and top speed at redline.
- [Quarter Mile Calculator](https://vajba.com/automotive/quarter-mile-calculator/): ET and trap speed from power and weight via four published formulas, each with its real accuracy.
- [Horsepower Torque Calculator](https://vajba.com/automotive/horsepower-torque-calculator/): convert hp, kW or PS and lb-ft or Nm at any rpm, and see why every dyno graph crosses at 5252.
- [Wheel Offset Calculator](https://vajba.com/automotive/wheel-offset-calculator/): poke, strut clearance, and backspacing for two wheels, drawn to scale from the hub face.
- [Horsepower from Trap Speed](https://vajba.com/automotive/horsepower-from-trap-speed/): four published formulas turn a quarter mile trap speed into horsepower, each with its real accuracy.
- [Compression Ratio Calculator](https://vajba.com/automotive/compression-ratio-calculator/): static and dynamic compression from the full volume budget, with a chamber volume solver.

## Site information

- [About Vajba](https://vajba.com/about/): mission, hosting, and how Vajba sustains itself without ads or tracking.
- [Privacy](https://vajba.com/privacy/): what Vajba does not collect, and why.
- [Tools directory](https://vajba.com/tools/): human-readable index of every tool with card descriptions.

## Optional

- [Full catalog](https://vajba.com/llms-full.txt): every one of the 200 tools with descriptions, organized by category.
- [Sitemap](https://vajba.com/sitemap.xml): XML sitemap of all pages.