# All The Tools (ATL)
> 100% Free, Ad-Free, Private Client-Side Utility Suite.

All The Tools (ATL) is an open-access web utility suite providing 101+ everyday tools.
Key Features:
- 100% Client-Side: Zero data leaves the user's browser. No file uploads, no cloud storage, no telemetry.
- Free Forever: $0.00 cost, no subscription, no credit card, no registration required.
- Zero Ads: Clean, minimalist, high-performance interface with no tracking or intrusive ads.
- Supported Engines: WebAssembly, Web Crypto API (AES-256-GCM), WebRTC DataChannels (P2P direct drop), HTML5 Canvas, Web Audio API, and pdf-lib.

Website URL: https://att-allthetools.com

## Available Tool Categories and Utilities

### Files & P2P Sharing
Direct browser-to-browser P2P file transfers, ZIP archivers, and checksum verifiers.

- [Files & P2P Sharing](https://att-allthetools.com/p2p-drop): Direct browser-to-browser encrypted file transfer over WebRTC. Zero cloud storage. (Tags: p2p, send, transfer, webrtc, drop, file transfer, share)
- [File Integrity & Checksum](https://att-allthetools.com/file-checksum): Compute and verify SHA-256, SHA-512, MD5, and SHA-1 hashes of local files. (Tags: hash, md5, sha256, sha512, checksum, verify, integrity)
- [ZIP Archiver & Extractor](https://att-allthetools.com/zip-tool): Create compressed .zip archives or inspect and extract files from ZIPs in-browser. (Tags: zip, archive, compress, extract, unzip, package)
- [Duplicate File Finder](https://att-allthetools.com/duplicate-file-finder): Find byte-identical duplicate files across a batch via SHA-256 hashing. (Tags: duplicate, files, dedupe, hash, disk space, cleanup)
- [Batch File Renamer](https://att-allthetools.com/batch-file-renamer): Rename many files at once using a pattern, then download them as a ZIP. (Tags: rename, batch rename, bulk rename, file naming, pattern)
- [File Shredder & Memory Overwriter](https://att-allthetools.com/file-shredder): Multi-pass in-browser memory sanitization with zero-fill, DoD 5220.22-M, and Gutmann algorithms. (Tags: shred, shredder, wipe, delete, overwrite, security, zero fill, dod)
- [MIME Type & Extension Lookup](https://att-allthetools.com/mime-lookup): Searchable catalog of 200+ standard media types, file extensions, and descriptions. (Tags: mime, mime type, extension, file type, content-type, media type, lookup)
- [Base64 File & Data URI Studio](https://att-allthetools.com/base64-file-studio): Encode any local file into Base64 / Data URIs, or decode Base64 strings back to downloadable files. (Tags: base64, data uri, file to base64, base64 to file, decode base64, encode, binary)

### Images & Media
Convert WebP/PNG/JPG, compress dimensions, strip EXIF metadata, and extract palettes.

- [Image Format Converter](https://att-allthetools.com/image-converter): Convert images between WebP, PNG, and JPEG instantly with quality controls. (Tags: convert, webp, png, jpg, jpeg, image format)
- [Instant Image Compressor](https://att-allthetools.com/image-compressor): Compress image file size with dynamic quality sliders and before/after comparisons. (Tags: compress, optimize, shrink, tinypng, filesize)
- [Image Resizer & Scaler](https://att-allthetools.com/image-resizer): Resize pixel dimensions with aspect ratio lock and quick percentage presets. (Tags: resize, scale, dimensions, width, height, crop)
- [EXIF Metadata Stripper](https://att-allthetools.com/exif-stripper): Inspect and remove camera details, GPS geolocation, and timestamps from photos. (Tags: exif, metadata, gps, privacy, camera, sanitize)
- [SVG Optimizer & Cleaner](https://att-allthetools.com/svg-optimizer): Strip bloated Figma, Illustrator, and Inkscape XML metadata and empty tags. (Tags: svg, vector, clean, optimize, minify, xml)
- [Color Palette Extractor](https://att-allthetools.com/color-palette): Extract dominant color palettes and CSS variables from any uploaded photo. (Tags: color, palette, swatch, hex, css variables, extract)
- [Favicon & App Icon Generator](https://att-allthetools.com/favicon-generator): Generate multi-resolution icons (16px to 512px), webmanifest, and HTML tags. (Tags: favicon, app icon, ico, apple touch icon, pwa manifest)
- [Video Frame Grabber](https://att-allthetools.com/video-frames): Scrub video frame-by-frame and export full-res PNG stills and sequence ZIPs. (Tags: video, frames, snapshot, still, mp4, webm, extract frame)
- [Image Watermark Studio](https://att-allthetools.com/image-watermark): Stamp a text watermark onto a photo with live preview, position, and opacity control. (Tags: watermark, stamp, copyright, brand, overlay text)
- [Image Cropper](https://att-allthetools.com/image-cropper): Drag-to-crop an image with aspect ratio presets — 1:1, 4:3, 16:9, and free-form. (Tags: crop, trim, aspect ratio, cut image)
- [Color Blindness Simulator](https://att-allthetools.com/color-blindness-simulator): Preview how an image looks under protanopia, deuteranopia, and tritanopia. (Tags: color blindness, accessibility, protanopia, deuteranopia, tritanopia, a11y)
- [Image to ASCII Art Converter](https://att-allthetools.com/ascii-art-converter): Turn any photo into monospace ASCII text art using Canvas pixel sampling. (Tags: ascii art, text art, image to text, retro, terminal art)
- [Aspect Ratio & Display Calculator](https://att-allthetools.com/aspect-ratio-calc): Calculate aspect ratios, simplify resolutions with GCD, scale dimensions, and estimate print sizes. (Tags: aspect ratio, resolution, display, screen size, calculator, print size, dpi, scale dimension)
- [Image Contrast & Color Adjuster](https://att-allthetools.com/image-adjuster): Adjust brightness, contrast, saturation, grayscale, invert, blur, and sepia with side-by-side comparison. (Tags: image adjuster, contrast, brightness, saturation, photo filter, grayscale, invert, sepia, blur)

### PDF Documents
Merge multiple PDFs, split pages, rotate scans, add watermarks, and convert photos to PDF.

- [PDF Merger](https://att-allthetools.com/pdf-merger): Combine multiple PDF documents into a single organized file in your browser. (Tags: pdf, merge, combine, join, concat)
- [PDF Page Splitter](https://att-allthetools.com/pdf-splitter): Extract specific pages or page ranges (e.g. 1-3, 5, 8) into a new document. (Tags: pdf, split, extract, pages, separate)
- [PDF Page Rotator](https://att-allthetools.com/pdf-rotator): Permanently rotate upside-down or sideways PDF scans by 90°, 180°, or 270°. (Tags: pdf, rotate, orientation, fix scan, angle)
- [Images to PDF Converter](https://att-allthetools.com/images-to-pdf): Compile JPEG and PNG photos into a clean multi-page PDF document. (Tags: pdf, images to pdf, jpg to pdf, compile, scans)
- [PDF Watermark & Stamp](https://att-allthetools.com/pdf-watermark): Add diagonal watermark text (e.g. CONFIDENTIAL, DRAFT) with custom opacity. (Tags: pdf, watermark, stamp, confidential, draft)
- [PDF Page Numberer](https://att-allthetools.com/pdf-page-numberer): Add page numbers (Page X of Y, X / Y) to header or footer across all PDF pages. (Tags: pdf, page numbers, paginate, numbering, stamp header, footer)
- [PDF Metadata Editor](https://att-allthetools.com/pdf-metadata-editor): Inspect and rewrite Title, Author, Subject, and Keywords in a PDF document. (Tags: pdf, metadata, title, author, keywords, document properties)
- [PDF Page Reorganizer](https://att-allthetools.com/pdf-page-reorganizer): Reorder, duplicate, or drop PDF pages by typing a new page sequence. (Tags: pdf, reorder pages, rearrange, duplicate page, delete page)
- [Markdown to PDF Compiler](https://att-allthetools.com/markdown-to-pdf): Compile markdown into formatted PDF documents with vector typography, live preview, and print stylesheets. (Tags: markdown, pdf, markdown to pdf, md to pdf, compiler, export pdf, document)

### Privacy & Security
AES-256 client-side file encryption, hardware-entropy password generators, and steganography.

- [AES-256-GCM Vault](https://att-allthetools.com/aes-encryptor): Military-grade authenticated file and text encryption with PBKDF2 key derivation. (Tags: encrypt, decrypt, aes, cipher, vault, security, crypto)
- [Password & Passphrase Generator](https://att-allthetools.com/password-generator): Generate high-entropy passwords or Diceware passphrases with entropy score. (Tags: password, passphrase, diceware, entropy, secure, random)
- [Hash & HMAC Calculator](https://att-allthetools.com/hash-calculator): Real-time text hashing for SHA-256, SHA-512, MD5, and secret-key HMACs. (Tags: hash, hmac, sha256, sha512, md5, signature)
- [Image Steganography](https://att-allthetools.com/steganography): Conceal secret messages inside image pixels or extract hidden text. (Tags: steganography, secret message, hide text, spy, lsb)
- [TOTP / 2FA Code Generator](https://att-allthetools.com/totp-generator): Generate RFC 6238 time-based one-time passcodes from a Base32 secret, entirely offline. (Tags: totp, 2fa, mfa, authenticator, one-time password, otp)
- [Password Strength Analyzer](https://att-allthetools.com/password-strength-analyzer): Entropy scoring and estimated offline crack time for any password, computed locally. (Tags: password, strength, entropy, crack time, security audit)
- [Secure Random Key Generator](https://att-allthetools.com/secure-key-generator): Generate cryptographically random keys for API secrets, JWT secrets, and env vars. (Tags: api key, secret key, random key, env var, jwt secret, token)
- [Bcrypt & Password Hasher](https://att-allthetools.com/password-hasher): Compute and verify standard Bcrypt and PBKDF2 password hashes with customizable cost and salt. (Tags: bcrypt, pbkdf2, password hash, hasher, crypto, verify hash, salt)

### Developer & Data
JSON formatters, CSV/JSON converters, regex testers, diff checkers, and private JWT debuggers.

- [JSON Formatter & Validator](https://att-allthetools.com/json-formatter): Beautify, minify, validate, and debug JSON payloads with syntax error detection. (Tags: json, format, beautify, minify, validate, pretty print)
- [CSV ↔ JSON Data Converter](https://att-allthetools.com/data-converter): Bidirectionally convert between tabular CSV files and structured JSON arrays. (Tags: csv, json, convert, table, data transform)
- [Regex Playground & Explainer](https://att-allthetools.com/regex-tester): Live regular expression tester with capture groups, matches, and pattern presets. (Tags: regex, regular expression, test, pattern, match)
- [Text & Code Diff Checker](https://att-allthetools.com/diff-checker): Compare two texts or code files side-by-side with added/removed line highlighting. (Tags: diff, compare, difference, code diff, text diff)
- [Base64 Encoder & Decoder](https://att-allthetools.com/base64-tool): Encode strings and binary files to Base64 or decode Base64 back to UTF-8. (Tags: base64, encode, decode, data uri, binary)
- [Private JWT Inspector](https://att-allthetools.com/jwt-inspector): Inspect JWT tokens safely in-browser without sending secrets to any cloud service. (Tags: jwt, token, decode, claims, auth, bearer)
- [UUID & NanoID Generator](https://att-allthetools.com/id-generator): Bulk generation of cryptographically random UUID v4 and compact NanoIDs. (Tags: uuid, guid, nanoid, random id, primary key)
- [Markdown Live Editor](https://att-allthetools.com/markdown-editor): Split-pane Markdown editor with live preview, HTML export, and download. (Tags: markdown, md, gfm, editor, preview, html export)
- [URL & HTML Entity Encoder](https://att-allthetools.com/url-encoder): Encode/decode URL percent-encoding query parameters and HTML entities. (Tags: url, uri, encode, decode, html entities)
- [JSON to TypeScript & Zod](https://att-allthetools.com/json-to-schema): Infer strict TypeScript interfaces and Zod validation schemas from JSON objects. (Tags: json, typescript, zod, schema, types, interface, generator)
- [CSS Glassmorphism & Shadow](https://att-allthetools.com/css-generator): Design Apple-grade multi-layer box shadows and frosted glass backdrop blur. (Tags: css, shadow, glassmorphism, box-shadow, backdrop-filter, styles)
- [CSV to Markdown & SQL Table](https://att-allthetools.com/csv-studio): Format raw CSV/TSV into GitHub Markdown tables, SQL INSERT queries, and HTML. (Tags: csv, tsv, markdown table, sql insert, html table, convert csv)
- [Base & Radix Converter](https://att-allthetools.com/number-base): Convert Decimal, Hex, Binary, and Octal with BigInt precision and bit formatting. (Tags: hex, binary, decimal, octal, radix, base converter, bitwise)
- [Card & IBAN Validator](https://att-allthetools.com/card-iban-validator): Luhn checksum for card numbers and ISO 7064 mod-97 checksum for IBANs. (Tags: luhn, credit card, iban, checksum, validate, bank account)
- [.gitignore Generator](https://att-allthetools.com/gitignore-generator): Combine common language, OS, and IDE ignore rules into a ready-to-use .gitignore. (Tags: gitignore, git, ignore rules, node, python, template)
- [SEO Meta Tag & Slug Generator](https://att-allthetools.com/meta-tag-generator): Generate title, description, Open Graph, and Twitter Card tags plus a clean URL slug. (Tags: seo, meta tags, open graph, twitter card, slug, head tags)
- [HTTP Status Code Reference](https://att-allthetools.com/http-status-reference): Search and browse common HTTP response status codes and what they mean. (Tags: http, status codes, 404, 500, api reference)
- [User-Agent Parser](https://att-allthetools.com/user-agent-parser): Identify browser, engine, OS, and device type from a User-Agent string. (Tags: user agent, browser detection, device detection, ua string)
- [YAML ↔ JSON Converter](https://att-allthetools.com/yaml-converter): Bidirectional conversion between human-readable YAML and structured JSON with formatting and download. (Tags: yaml, json, converter, yaml to json, json to yaml, parser, format)
- [Regex Match & Data Extractor](https://att-allthetools.com/regex-extractor): Extract emails, URLs, IPv4 addresses, phone numbers, UUIDs, or custom regex matches with deduplication and CSV export. (Tags: regex, extractor, data extractor, email extractor, url extractor, ipv4, uuid, csv)
- [Subnet & CIDR Calculator](https://att-allthetools.com/subnet-calculator): Calculate IP subnet masks, wildcard masks, network and broadcast addresses, and usable host ranges. (Tags: subnet, cidr, ip, network, mask, broadcast, host, ipv4)
- [Cron Schedule Visualizer](https://att-allthetools.com/cron-visualizer): Visualize the next 10 future execution timestamps for 5-part crontabs in local time and UTC. (Tags: cron, crontab, schedule, visualizer, timer, future execution, job)
- [HTML Entity & Char Codes](https://att-allthetools.com/html-entity-inspector): Searchable catalog of HTML character entities, decimal and hex codes with one-click copy. (Tags: html entities, char codes, html entity, unicode, decimal, hex code, symbols, math, currency, arrows, greek)
- [SQL Query Beautifier](https://att-allthetools.com/sql-formatter): Format, uppercase keywords, indent clauses cleanly, or minify SQL queries client-side. (Tags: sql, format, beautify, minify, query, sql beautifier, uppercase, indent)
- [CSS Gradient Studio](https://att-allthetools.com/gradient-generator): Design linear, radial, and conic CSS gradients with multi-stop color controls and copy-ready syntax. (Tags: gradient, css, color, linear-gradient, radial-gradient, conic-gradient, background, generator)
- [Hex / Binary Stream Inspector](https://att-allthetools.com/hex-inspector): Inspect raw binary streams and text in canonical 16-byte hexdump format with byte statistics and search. (Tags: hex, hexdump, binary, byte, inspector, offset, ascii, stream, entropy)

### Text & Writing
Word counters, readability grade analysis, casing converters, and line deduplicators.

- [Word & Character Counter](https://att-allthetools.com/word-counter): Detailed metrics for word count, character count, reading time, and readability. (Tags: word count, character count, readability, reading time, syllables)
- [Text Case Converter](https://att-allthetools.com/case-converter): Transform text to camelCase, kebab-case, snake_case, PascalCase, Title Case, etc. (Tags: case, camelcase, snake_case, kebab-case, uppercase, lowercase)
- [Text Sorter & Deduplicator](https://att-allthetools.com/text-sorter): Sort lines alphabetically or by length, remove duplicate lines, and trim whitespace. (Tags: sort, alphabetical, deduplicate, unique lines, clean text)
- [Lorem Ipsum Generator](https://att-allthetools.com/lorem-generator): Generate placeholder dummy text, paragraphs, sentences, and words for mockups. (Tags: lorem, ipsum, placeholder, dummy text, mock text)
- [Subtitle & SRT Shifter](https://att-allthetools.com/srt-cleaner): Fix out-of-sync movie subtitles, shift timecodes, strip tags, and convert to WebVTT. (Tags: srt, vtt, subtitles, sync, captions, transcript, shift time)
- [Morse Code Translator](https://att-allthetools.com/morse-code): Encode text to International Morse Code or decode it back, with audible playback. (Tags: morse, morse code, encode, decode, dots and dashes, sos)
- [Find & Replace (Bulk / Regex)](https://att-allthetools.com/find-replace): Bulk find-and-replace across a block of text, with optional regex and capture groups. (Tags: find and replace, regex, bulk edit, text transform)
- [Classic Cipher Toolkit](https://att-allthetools.com/cipher-toolkit): Caesar, ROT13, and Vigenère ciphers for puzzles, games, and learning. (Tags: cipher, caesar, rot13, vigenere, puzzle, encode text)
- [Keyword Density Analyzer](https://att-allthetools.com/keyword-density): See which words and phrases dominate a block of text — useful for SEO review. (Tags: keyword density, seo, word frequency, content analysis)
- [Reading Time & Speaking Pace](https://att-allthetools.com/reading-time): Estimate silent reading time and speaking presentation duration across multiple speeds and paces. (Tags: reading time, speaking pace, speech timer, words per minute, presentation pace, word count)
- [Line Deduplicator & Frequency](https://att-allthetools.com/text-dedup-frequency): Remove duplicate lines, sort alphabetically or by frequency, and analyze item occurrence percentages. (Tags: dedup, deduplicate, duplicate lines, frequency, unique, text filter, sort lines, count)

### Everyday & Calculators
QR codes, unit conversions, Unix timestamps, screen recorders, and scientific calculators.

- [QR Code Generator & Scanner](https://att-allthetools.com/qr-suite): Generate custom QR codes (SVG/PNG) with custom colors or scan QR codes from files. (Tags: qr, qrcode, barcode, scan, generate qr)
- [Unit & Measurement Converter](https://att-allthetools.com/unit-converter): Precision conversions across length, weight/mass, data storage, speed, and temp. (Tags: unit, convert, metric, imperial, bytes, temperature, speed)
- [Unix Timestamp & Epoch](https://att-allthetools.com/timestamp-converter): Convert Unix timestamps (seconds & ms) to UTC, local time, and ISO 8601. (Tags: timestamp, epoch, unix, time, date, utc)
- [Screen & Voice Recorder](https://att-allthetools.com/screen-recorder): Capture browser screen video or microphone audio memos directly to your device. (Tags: screen record, video capture, voice memo, mic recorder, screen capture)
- [Metronome & Tone Generator](https://att-allthetools.com/metronome-tone): Precision BPM click track and pure waveform frequency generator (440Hz tuning). (Tags: metronome, tone, bpm, frequency, tuner, sound, audio)
- [Scientific Calculator](https://att-allthetools.com/scientific-calc): Arithmetic calculations, trigonometry, square root, powers, and logarithms. (Tags: calc, calculator, math, scientific, trig)
- [Color Converter & Contrast](https://att-allthetools.com/color-converter): Convert HEX, RGB, HSL with WCAG 2.2 AA accessibility contrast ratio verification. (Tags: color, hex, rgb, hsl, contrast, wcag, eyedropper)
- [Cron Expression Parser](https://att-allthetools.com/cron-parser): Translate cryptic 5-field Cron schedules into plain, human-readable English. (Tags: cron, schedule, timer, crontab, automation)
- [Audio & Voice Recorder](https://att-allthetools.com/audio-recorder): Record voice memos with live oscilloscope waveform visualization and WebM export. (Tags: audio, voice, recorder, microphone, sound, memo, dictation)
- [Barcode & SKU Studio](https://att-allthetools.com/barcode-generator): Generate high-density Code 128 barcodes as vector SVG or PNG for print and inventory. (Tags: barcode, code128, sku, inventory, label, retail, upc)
- [Roman Numeral Converter](https://att-allthetools.com/roman-numeral): Convert between Arabic numbers (1-3999) and Roman numerals in either direction. (Tags: roman numeral, numerals, convert, latin numbers)
- [Age & Date Difference Calculator](https://att-allthetools.com/age-calculator): Calculate the exact age or duration between any two dates down to the day. (Tags: age, date difference, birthday, duration, days between dates)
- [Random Picker, Dice & Coin Flip](https://att-allthetools.com/random-picker): Cryptographically random name picker, dice roller, and coin flip. (Tags: random, picker, dice, coin flip, raffle, decision maker)
- [BMI Calculator](https://att-allthetools.com/bmi-calculator): Estimate Body Mass Index from weight and height in metric or imperial units. (Tags: bmi, body mass index, health, weight, fitness calculator)
- [Loan & Mortgage Calculator](https://att-allthetools.com/loan-calculator): Estimate monthly payments and total interest for a fixed-rate amortizing loan. (Tags: loan, mortgage, amortization, interest, monthly payment, finance)
- [Percentage Calculator](https://att-allthetools.com/percentage-calculator): Three common percentage problems solved instantly: of, what-percent, and change. (Tags: percentage, percent change, math, calculator)
- [World Clock](https://att-allthetools.com/world-clock): Live local time across multiple timezones, computed with the browser Intl API. (Tags: world clock, timezone, time zones, meeting planner, utc)
- [Stopwatch & Countdown Timer](https://att-allthetools.com/stopwatch-timer): Precision stopwatch with lap splits, or a simple countdown timer. (Tags: stopwatch, timer, countdown, lap timer, pomodoro)
- [BPM Tap & Tempo Counter](https://att-allthetools.com/bpm-tap): Tap tempo counter calculating beats per minute, milliseconds per beat, classical markings, and delay times. (Tags: bpm, tap tempo, metronome, beats per minute, tempo counter, delay time, music calculator)
- [Audio Pitch & Tuner Gauge](https://att-allthetools.com/pitch-detector): Detect fundamental audio frequency and tune musical instruments with a real-time cents needle gauge. (Tags: pitch detector, tuner, guitar tuner, audio pitch, frequency, musical notes, chromatic tuner)
- [Pomodoro Focus & Interval Timer](https://att-allthetools.com/pomodoro-timer): Customizable Pomodoro interval timer with circular progress display, audio chime, and session streak tracker. (Tags: pomodoro, focus timer, interval timer, productivity, study timer, work sprints)
- [Fuel Cost & Mileage Calculator](https://att-allthetools.com/fuel-calculator): Calculate trip fuel quantity, total cost, cost per kilometer/mile, and passenger cost splits. (Tags: fuel, gas, mileage, fuel cost, mpg, liters, trip cost, car, travel)
- [Tip & Bill Splitter](https://att-allthetools.com/tip-calculator): Calculate tips, optional sales tax, round up totals, and split bills evenly among people. (Tags: tip, bill split, gratuity, restaurant, splitter, tax, receipt, dining)
- [Date Difference & Duration](https://att-allthetools.com/date-duration): Calculate exact calendar breakdown, business days, total hours, and percentage of year between two dates. (Tags: date, duration, date diff, difference, business days, calendar, countdown, time between)
- [Morse Code Audio Trainer](https://att-allthetools.com/morse-trainer): Interactive Morse code audio player and flashcard quiz trainer with customizable WPM and tone frequency. (Tags: morse code, morse trainer, audio trainer, cw, radio, flashcards, quiz)