Supercharge Your Workflow With Instant Browser Tools
Compress photos, merge PDFs, trim audio, transcribe speech, format JSON, and decode JWTs. Files are processed on your device — never uploaded to a server.
Image Compressor
Compress JPG, PNG, and WebP up to 80% smaller without visible quality loss — right in your browser.
Image Resizer
Change photo dimensions in pixels or percent, with aspect-ratio lock and batch support.
Image Converter (JPG, PNG, WebP)
Convert between JPG, PNG, and WebP instantly — batch convert with full quality and transparency control.
Image to PDF Converter
Combine JPG, PNG, and WebP images into a single multi-page PDF — reorder pages, A4 or fit-to-image layout.
EXIF & Metadata Remover
Strip GPS coordinates, camera model, timestamps, and other hidden metadata from your photos.
Image Color Extractor
Extract the dominant colors from any image as HEX, RGB, and HSL — with a copyable palette, straight from your browser.
Image Quality Analyzer
Check sharpness, exposure, contrast, resolution, and compression artifacts before you upload or print — with honest verdicts.
Smart Crop
Crop to any aspect ratio with the most detailed region kept automatically — edge-energy saliency, not a neural model.
High Quality Image Upscaler
Enlarge photos up to 4× with multi-step resampling and sharpening — the honest "upscaler" that doesn't fake AI detail.
Duplicate Image Finder
Drop a batch of photos and find exact and near-duplicates — even after resizing or re-compression — via perceptual hashing.
Merge PDF
Combine multiple PDF files into one document, in your chosen order — no upload, no limits, no signup.
Split PDF
Extract page ranges into new PDFs, or split a document into individual files — fully in your browser.
Rotate PDF
Fix sideways or upside-down scans — rotate individual pages or the whole document by 90°/180°.
PDF to JPG Converter
Convert PDF pages into high-resolution JPG images — one image per page, ZIP download, fully private.
Audio Trimmer & Cutter
Cut MP3, WAV, M4A, FLAC to an exact segment — trim, fade, and export MP3 or WAV in your browser.
Pitch Detector
Detect the fundamental frequency of a recording or hummed note — YIN algorithm, live F0 graph, nearest musical note.
BPM & Tempo Detector
Find the tempo of any song or loop — onset-energy autocorrelation with confidence score and beat grid, fully in-browser.
Speech to Text (In-Browser AI)
Transcribe microphone audio or audio files to text in English, Spanish, French, Portuguese, or Japanese — AI that runs in your browser, no uploads.
Text to Speech (In-Browser AI)
Turn text into natural, expressive speech with a neural voice — and export it as MP3 or WAV.
Image to Text (OCR)
Extract text from screenshots, scans, and photos — OCR that runs in your browser, images never uploaded.
Text Similarity (In-Browser AI)
Compare two texts for meaning similarity with sentence embeddings — MiniLM running in your browser, no uploads.
AI Background Remover
Cut subjects, people, products, and objects out of a photo into a transparent PNG — state-of-the-art RMBG runs entirely in your browser, no upload.
Voice Activity Detector
Find exactly where speech starts and stops in any audio file — Silero VAD runs in your browser, works for every language, no upload.
Noise Remover
Remove background noise from voice recordings — RNNoise runs in your browser as a tiny WebAssembly module, no upload, no signup.
Object Detector
Draw boxes around every object in a photo with labels and confidence — EfficientDet runs in your browser, no upload.
Face Detector
Find and count faces in a photo — BlazeFace runs in your browser and draws boxes only. No identification, no upload.
Word Counter
Count words, characters, sentences, paragraphs, and reading time — live, private, unlimited.
Text Case Converter
Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and more.
Keyword Extractor
Pull the key phrases and top keywords out of any text with RAKE and TF-IDF scoring — no AI server, no upload.
Language Detector
Identify which language a text is written in — top-3 candidates with confidence scores, using a statistical n-gram method.
Text Statistics Analyzer
Deep text stats: unique words, lexical density, average lengths, and a top-words frequency table — computed live as you type.
Readability Analyzer
Flesch Reading Ease, Flesch-Kincaid grade, ARI, and Gunning Fog scores plus reading time — for clear, honest writing.
Duplicate Text Finder
Find repeated lines and paragraphs in any text — normalized matching, occurrence counts, and one-click cleanup.
JSON Formatter & Beautifier
Format, indent, and beautify messy JSON with instant error location — 100% in your browser.
JSON Validator
Validate JSON syntax and pinpoint the exact line and column of any error — locally.
JSON Minifier
Strip whitespace and newlines from JSON to minimize payload size — instantly, locally.
Base64 Encoder & Decoder
Encode text to Base64 and decode it back — full Unicode support, processed locally.
URL Encoder & Decoder
Percent-encode text for URLs, or decode encoded query strings — locally and instant.
UUID v4 Generator
Generate cryptographically secure random UUIDs in bulk — one click or a thousand.
Unix Timestamp Converter
Convert epoch seconds/milliseconds to readable dates and back — with a live current-timestamp clock.
JWT Decoder
Decode JWT headers and payloads in your browser — tokens are never sent to any server.
Hash Generator (SHA-1/256/512)
Compute SHA-1, SHA-256, and SHA-512 checksums using the browser's native Web Crypto engine.
CSV ↔ JSON Converter
Convert spreadsheet CSV to JSON arrays and JSON back to CSV — proper quote and delimiter handling.
Why Choose MGToolbox?
Built from the ground up for privacy, speed, and zero server friction.
100% In-Browser Privacy
Your photos, tokens, and confidential data never touch external servers. Processed locally on your device.
Zero Wait Time
Skip slow cloud upload bottlenecks. Convert gigabytes in milliseconds using native hardware acceleration.
Forever Free & Unlimited
No paywalls, subscription nag screens, or hidden limits. Built for maximum speed and utility.