Bitcoin Wallet for Testnet and Mainnet
Generate wallet, import seed or WIF, read balance and UTXOs, and send BTC on testnet or mainnet with local signing.
打开工具解决日常任务的实用在线工具
查找并使用免费在线工具进行转换、计算、生成和可视化,一站式解决常见日常任务,无需注册、无需登录。
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查看全部工具81 个结果.
技术工具
加密货币
Crypto Unit Converter
Convert satoshi, gwei, wei, lamport, sun, lovelace, and other on-chain units for free, with no sign-up and no login.
打开工具Bitcoin Fee Calculator with Mempool
Fetch recommended sat/vB fees, estimate cost by vsize, and compare priorities in sats and BTC.
打开工具Bitcoin Address and TX Decoder Read-only
Validate Bitcoin addresses and decode raw hex transactions without seed, signing, or broadcast.
打开工具Lightning Decoder
Decode Lightning Address, LNURL, BOLT11 and BOLT12 with color-coded fields, export JSON/TXT and generate QR Code in PNG/SVG, all locally in your browser.
打开工具开发工具
HTML Editor with Preview and Console
Edit HTML, CSS, and JavaScript with CodeMirror, sandbox preview, captured console, templates, file upload, and .html export.
打开工具Markdown Viewer and Editor
Edit, preview, and export Markdown online with .md upload, fullscreen focus mode, and output to MD, HTML, PNG, or PDF.
打开工具JSON Formatter and Minifier
Format, minify, and validate JSON for free, with no sign-up, no login, readable error feedback, and quick copy actions.
打开工具CSV Viewer and Converter
Paste CSV or upload file to preview table, auto-detect delimiter, switch separators, and export to XLSX for free.
打开工具JSON, SQL, XLSX, CSV, and TSV Converter
Convert tabular data between JSON, SQL INSERT, XLSX, CSV, and TSV with paste, upload, auto-detection, and local processing.
打开工具Text Comparator and Online Diff
Compare two text versions with visual diff, change summary, and list mode for quick audits.
打开工具Open Graph Preview and Meta Tag Generator
Preview shared links, validate Open Graph and Twitter Card fields, and generate HTML/Next.js snippets.
打开工具Base64 Image Viewer
Paste Base64, preview image instantly, and download in multiple formats for free, with no sign-up and no login.
打开工具Image to Base64 Generator
Upload an image and generate Base64 automatically with preview, one-click copy, and output mode selection.
打开工具Authenticator Code Generator for Testing
Scan an authenticator QR code or paste a Base32 secret/otpauth link to generate local TOTP codes, track expiry, and copy quickly.
打开工具File Hash and Checksum
Calculate MD5, SHA-1, SHA-256, SHA-384, SHA-512, and CRC32 for local files with comparison and export.
打开工具Favicon and Manifest Generator
Generate favicon.ico, PNGs, Apple Touch Icon, maskable icons, PWA manifest, and HTML snippet in a ZIP.
打开工具JSON to TypeScript, Zod, and Schema
Paste real JSON and generate TypeScript interfaces, Zod schema, and JSON Schema with ZIP export.
打开工具Cron Generator and Explainer
Build cron expressions, read human descriptions, and preview next runs by timezone.
打开工具Gzip, Deflate, and Password ZIP
Compress/decompress gzip/deflate, package files or folders into ZIP, and extract ZIP locally.
打开工具DNS Lookup via DoH
Query DNS records A, AAAA, CNAME, MX, TXT, NS, SOA, and CAA using public DNS over HTTPS.
打开工具SQL Formatter and Minifier
Format SQL by dialect, adjust keyword case, minify queries, and export a .sql file.
打开工具JWT Decoder Online
Decode JWT and inspect header, payload, and signature with readable JSON, claim highlights, and timestamp conversion.
打开工具Regex Studio: Tester, Generator & Explainer
Test, generate, explain, validate, extract and replace with regex. Pattern library, visual builder, diagnostics and code snippets in 7 languages.
打开工具UUID, ULID, KSUID, CUID2, and NanoID Generator
Generate UUID v1-v7, NanoID, ULID, KSUID, CUID2, and ObjectId in batches with quick export.
打开工具Unix Timestamp Converter
Convert Unix timestamp to readable date and date to timestamp in seconds and milliseconds with UTC/local output.
打开工具URL Encoder and Decoder
Encode and decode URLs and query params with support for special characters and fast copy actions.
打开工具Universal Converter for Text, Codes, Hashes, Ciphers, and Bases
Single conversion hub for text, numbers, hashes, ciphers, and technical formats with validation, presets, batch mode, and local processing.
打开工具Keyboard Shortcuts Hub
Keyboard shortcuts for Windows, macOS, VS Code, Excel, Google Sheets, Chrome, GitHub, and Figma with search, categories, and a Windows/Mac toggle.
打开工具Visual CSS Generator
Create gradients, shadows, borders, border-radius, glassmorphism, filters and animations with sliders and copy the CSS code.
打开工具HEX, RGB & HSL Color Converter
Convert colors between HEX, RGB, HSL, HSV, CMYK and other formats, see live preview, copy CSS code and compare contrast.
打开工具Image Color Extractor
Extract colors from any image directly in the browser, generate palettes, copy CSS variables and create themes for your projects — all locally.
打开工具Conversor Educacional de Código
Converta código entre Pascal, C, Java e Pseudocódigo com explicações de sintaxe.
打开工具文档与媒体
Image and PDF Converter
Convert 20+ image formats and PDF directly in your browser with a fast, free, no-sign-up workflow.
打开工具Batch Image Compressor
Compress multiple images online with adjustable compression level, estimated output size, and preview before download.
打开工具Chroma Key Image Background Remover
Remove green, magenta, white, or custom-color image backgrounds and download a transparent PNG at original size.
打开工具Online Video Compressor
Compress multiple videos online with adjustable compression level, estimated output size, and before/after preview.
打开工具Audio Editor and Video Audio Extractor
Extract audio from videos, import audio files or direct media URLs, cut by waveform, rename clips, and download separate MP3, WAV, M4A, OGG, or WEBM files.
打开工具Audio and Video Transcription to Text
Transcribe audio and video to text locally in your browser with Whisper, producing continuous text, timestamped segments, and SRT/VTT subtitles.
打开工具EXIF Reader and Remover
Read EXIF metadata, GPS, camera, and image dates, copy JSON, and download a cleaned image copy.
打开工具Resize and Crop Image
Resize images, crop to fixed proportions, create centered squares, and export PNG, JPEG, or WEBP.
打开工具Merge, Split, and Reorder PDF
Combine PDFs, reorder files, remove items, and split pages into an optionally password-protected ZIP.
打开工具游戏工具
Counter-Strike 2
CS2 训练指令
复制 CS2 训练指令,用于烟雾弹、Bot、回合设置、经济系统和投掷物重复练习。
打开工具CS2 Autoexec 生成器
分别生成包含雷达、HUD、viewmodel、FPS、音频和简单绑定的 autoexec.cfg、practice.cfg 和 fun.cfg。
打开工具CS2 竞技配置
搭建安全的 CS2 竞技配置,包含雷达、viewmodel、HUD、FPS 和简单绑定,不含训练专用指令。
打开工具CS2 职业选手准星代码
浏览职业选手的 CS2 和 CS:GO 准星代码,按战队/国家/位置筛选,一键复制。
打开工具Mais modos de CS2 disponiveis no hub: Ver todos os modos CS2
GTA
GTA Cheat Codes (San Andreas, V, IV, III, Vice City)
Search and copy GTA cheats by game, category, and platform with multilingual smart matching.
打开工具其他游戏
实用工具
Valid CPF Generator
Generate valid CPF numbers for tests with punctuation or plain digits, free, no sign-up, no login, and quick copy actions.
打开工具Fake Person Generator for Testing
Generate coherent fictional profiles with valid CPF, realistic RG, address, phone, and email for QA, automation, and staging datasets.
打开工具Strong Password Generator
Create strong passwords with custom length and character options, free, with no sign-up and no login.
打开工具QR Code Generator with Logo
Create QR codes for text or URLs for free, with no sign-up, no login, logo branding, and export to multiple formats.
打开工具CNPJ Validator and Generator
Validate Brazilian CNPJ numbers, generate valid test numbers, and export TXT, CSV, or JSON lists.
打开工具Brazilian Boleto and Digitable Line Validator
Validate boleto lines or barcodes, convert formats, and extract due date, amount, and free field.
打开工具QR Code Scanner and Decoder
Read QR Codes from image or camera, copy decoded content, and export TXT or JSON.
打开工具Wi-Fi, vCard, and Event QR Generator
Create QR Code payloads for Wi-Fi, vCard contacts, and calendar events with PNG/SVG download.
打开工具Transfer Between Devices
Transfer text, links, Pix payloads, JSON, commands, and files between phone and desktop with QR Code and WebRTC P2P in the browser.
打开工具WhatsApp and Telegram Link Generator with Prefilled Message
Create WhatsApp and Telegram links with prefilled text using phone number or @username, with fast copy actions.
打开工具Complete Random Picker
Draw names and numbers with smart parsing, wheel mode, multiple winners, weighted logic, and shareable links.
打开工具Online Character and Word Counter
Count characters, words, lines, sentences, paragraphs, emojis, and limits for SEO, social media, writing, and coding.
打开工具URL Slug Generator
Turn titles and phrases into clean URL slugs with separator, length, and suggestion controls.
打开工具Remove Accents from Text
Remove accents and special characters for URLs, filenames, spreadsheets, and normalized identifiers.
打开工具Compound Interest Calculator
Simulate investment growth with monthly deposits, compare simple vs compound, and calculate required contribution or required rate.
打开工具Fortnite 与游戏隐藏字符生成器
复制适用于 Fortnite、Free Fire、COD Mobile、Discord 等平台的隐藏字符,支持昵称变体生成、Unicode 检测和清除功能。
打开工具可复制符号大全
300多个 Unicode 符号,按12个分类整理,支持搜索、收藏、历史记录,并可复制为文本、HTML 实体或 Unicode 编码点。
打开工具Multiplication Table Quiz
Look up the times table from 1 to 12, practice with an adjustable-difficulty quiz, timer, saved best score, and a printable worksheet.
打开工具Discover Public IP and Device Info
Discover your public IP, estimated ISP, and basic device and location information from your browser.
打开工具Temporary Email
Generate a disposable email to receive messages for up to 1 hour with automatic expiration.
打开工具Pix QR Code Decoder & Generator
Generate Pix Copy and Paste payloads, decode EMV fields, validate CRC16, fix errors, view the field tree and download QR Code — all locally in the browser.
打开工具为高效日常工作流而生
每个工具都有独立的专属页面,配有快速指南、常见问题和直接操作入口,帮助用户迅速完成任务。
导航设计刻意保持简洁,减少干扰,让用户无论在电脑还是手机上都能快速找到关键功能。