All tools
Every utility runs in your browser. More tools ship weekly.
- New
AI token counter
OpenAI GPT-5 / GPT-4o, Anthropic Claude, Gemini, Grok, DeepSeek, Qwen, Kimi, MiniMax, Codex token counts - 100% in-browser.
- Quick
Unix timestamp converter
Unix epoch seconds / milliseconds, readable dates, timezone-aware conversion - fast and 100% local.
- New
YAML / JSON converter
YAML <-> JSON conversion, pretty-print, copy-ready output - 100% in-browser.
JSON formatter
JSON validation, pretty-print, minify, configurable indent, copy-friendly output - 100% local.
- New
JSON diff
JSON comparison, line-level highlights, parse-error feedback, pretty-printed diff - in-browser.
JWT decoder
JWT header and claims decode, UTC exp / nbf / iat, optional HS256 / HS384 / HS512 verify - no upload.
Base64 encoder
UTF-8 text and binary files up to 60 MB, Base64 encode / decode, local processing, no upload.
Hash generator
SHA-256, SHA-384, SHA-512, SHA-1 hashes, Web Crypto support, lowercase hex output - 100% local.
Color converter
HEX, RGB, HSL, alpha support, native color picker, live preview, one-click CSS copy.
Regex tester
JavaScript regex testing, match indices, capture groups, inline highlights, standard flags - local engine.
URL encoder & decoder
URL encode / decode, query string parser, URL parts breakdown, UTF-8 safe - 100% local.
Word counter
Word, line, paragraph, character, grapheme cluster, UTF-8 byte counts - live and local.
- Hot
QR code generator
URL, Wi-Fi, vCard, plain text to PNG QR code, adjustable size and error correction - 100% local.
Password generator
Strong random passwords, Web Crypto randomness, adjustable length and character classes - never uploaded.
- New
Cron expression parser
Cron expression preview, next 5 run times, plain-English explanation, local parsing.
Markdown table generator
Spreadsheet rows to GitHub-flavored Markdown tables, live preview, copy-ready output - in-browser.
- Quick
Image & GIF compressor
PNG, JPEG, WebP, animated GIF, HEIC/HEIF, TIFF compression, high-fidelity output, lossless PNG, no upload.
Image resizer
PNG, JPEG, WebP photo resizing, longest-edge presets, fine slider, high-fidelity downscale - local only.
Image format converter
PNG, JPEG, WebP, AVIF format conversion, transparency preserved where supported, local re-encoding.
HEIC to JPG
iPhone HEIC / HEIF to JPG, private image decode path, high-quality JPEG output, 100% in-browser.
Image to text (OCR)
PNG, JPEG, screenshots and photos to text OCR, 100+ language packs, on-device processing, no upload.
- New
Document watermark & privacy masking
ID card, license, passport watermark and privacy masking, blur or pixelate sensitive areas, 100% local, no upload.
- New
ID photo background changer
ID photo background replacement, white / blue / red / custom colors, AI person segmentation, 100% in-browser.
- New
PDF compressor
PDF compression in-browser, private cloud-compressor alternative, no upload, no signup.
UUID generator
Bulk UUID v4 generation, crypto-random values, clipboard copy, .txt download - 100% local.
Case converter
camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE conversion - instant and fully local.
.env parser
.env validation, key listing, duplicate detection, normalized export copy - in-browser.
Prompt formatter
LLM prompt cleanup, trim ends, collapse blanks, normalize smart quotes - 100% local.
Text chunk splitter
Long document splitting, character or token budgets, overlap control, RAG / LLM ingest ready.
Transcript cleaner
ChatGPT, Claude, Gemini, Grok transcript cleanup, compact plain text output - 100% in-browser.
Rich text to plain
HTML / Markdown to clean plain text, datasets, prompts, search indexes - on-device.
LLM messages JSON
OpenAI-style chat messages JSON, system / user / assistant roles, vision content[] examples - in-browser.
Markdown to HTML
Markdown to HTML, headings, emphasis, code blocks, links, local rendering.
HTML minifier
HTML minify and beautify, production snippets, review-friendly formatting - stays on-device.
Favicon generator
Image to favicon.ico and PWA icons, 16 / 32 / 180 / 192 / 512 px sizes, local generation.
Text diff
Text comparison, line-by-line added / removed highlights, private local diff.
Age calculator
Age in years, months, days, total days, birth date to target date - 100% local.
BMI calculator
BMI calculator, metric and imperial units, category band, instant local result.
Unit converter
Length and temperature conversions, metric and imperial units, instant local results.
TOML converter
TOML <-> JSON conversion, direction toggle, pretty-print output - 100% in-browser.
- New
JSON to CSV converter
JSON arrays to Excel-ready CSV, nested field flattening, UTF-8 BOM, private browser processing.
- New
EXIF metadata remover
Photo GPS, camera, and timestamp metadata removal for JPEG images, local-only privacy protection.
- New
Log sanitizer
IP, email, phone, API key and token redaction, preview counts, clean logs for safe sharing.
- New
SVG to PNG/JPG converter
SVG to high-resolution PNG/JPG, custom width and height, icon export, fast local Canvas conversion.
- New
PDF merge and split
Merge multiple PDFs, split page ranges, ZIP export for pages, private browser-only processing.
- New
AES text encryptor
AES-GCM text encryption, PBKDF2 password keys, decrypt locally, copy encrypted JSON safely.
- New
Key format converter
RSA PEM to JWK, JWK to PEM, auto-detect key format, Web Crypto local conversion.
- New
Code to image generator
Code screenshots with gradients, window chrome, shadows, PNG export, social-ready local rendering.
- New
Local PDF encrypt/decrypt
AES-GCM PDF byte encryption, password-based decrypt, local encrypted package, no upload.