All tools
412 tools · No registration · Temporary file processing
Delete PDF PagesDelete selected pages while retaining the order of the remaining pages. Keep at least one page.PDFCompress PDFChoose lossless, balanced or smaller-file mode. Balanced/smaller modes reduce image quality; optimized PDFs may not shrink.PDFAdd PDF Page NumbersNumber selected pages sequentially with a starting number, position, size and optional final page number.PDFWatermark PDFAdd a centered Chinese or English text watermark with angle, size, color and opacity settings. Watermark text is embedded as an image.PDFCrop PDF MarginsCrop margins in millimeters. Hidden content remains in the file; cropping is not redaction.PDFResize PDF PagesFit content proportionally into A4, A3 or Letter while retaining text. Annotations on resized pages are removed.PDFRemove PDF AnnotationsRemove comments, highlights and notes, optionally including links. Marks embedded in page content cannot be removed.PDFExtract PDF ImagesExport embedded raster images as PNG/ZIP, up to 300 images. Vector graphics and full-page screenshots are not included.PDFClear PDF PropertiesClear the document information dictionary and document/page XMP. Content, image EXIF and annotations may still contain personal information.PDFWord to TextExport DOCX body paragraphs and optional tables as UTF-8 TXT. Layout, headers, footers, footnotes and image OCR are not included.DOCXExcel to CSVExport one or all visible worksheets with a filename manifest. Formulas are exported as text without recalculation; formatting is not retained.XLSXCSV to ExcelConvert CSV to XLSX with text cells, preserving leading zeros and long numbers without executing formulas.CSV · TXTVoice Noise ReductionAudition simple or local voice-model noise reduction, then export the full audio while preserving its sample rate, channels and duration.MP3 · WAV · M4A · OGG · FLAC · AACUUID / GUID GeneratorGenerate v4 or v7 identifiers in your browser, then copy or download in batches.Password Strength CheckerAnalyze locally as you type, with common patterns and practical suggestions.Number Base ConverterConvert integers between bases 2–36 with exact large-integer precision.Timestamp ConverterConvert seconds, milliseconds and dates with explicit time zones.Online CalculatorCalculate with arithmetic, parentheses and explicit percent rules.Countdown PreviewDrag scene elements, preview a countdown and save a static cover.Image RedactorDraw rectangles or brush strokes to cover, pixelate or blur image regions.JPG · JPEG · PNG · WEBPImage Corners & ShadowDrag shadow offsets, add transparent corners, margin and background, and expand the canvas automatically.JPG · JPEG · PNG · WEBPFavicon & Avatar GeneratorDrag to crop, preview square or circular avatars, and generate multiple PNG sizes and an ICO.JPG · JPEG · PNG · WEBPImage EXIF Viewer & CleanerInspect and search EXIF, GPS and camera metadata locally; optionally clean and compare results.JPG · JPEG · PNG · WEBPImage Base64 Encoder & DecoderConvert images to and from Base64, preview, copy or download locally without uploading content.
Complete tool index
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Documents & PDF
Office conversion
- Word to PDF
- Excel to PDF
- PPT to PDF
- Word to Text
- Excel to CSV
- CSV to Excel
- JSON to Excel
- Excel to JSON
- Batch CSV to Excel
- Batch Excel to CSV
- Excel Format Converter
- Excel to HTML
- Excel to TXT
- Excel to Markdown
- HTML to Markdown
- Markdown to HTML
- ZIP Compressor
- ZIP Extractor
- Compress Ppt
- Compress Word
- Text to Image
- Merge Word
- Markdown Editor
- Merge Excel
- Split Excel
PDF conversion
- Images to PDF
- PDF to Images
- PDF to Text
- Compress PDF
- Extract PDF Images
- Clear PDF Properties
- Pdf To Word
- Pdf To Long Image
- Pdf To Excel
- Unlock Pdf
- Jpg To Word
- Pdf To Ppt
- Pdf To Cad
- Protect Pdf
- Pdf To Html
- Pdf Zhcn To En
- Pdf En To Zhcn
- Jpg To Pdf
- Pdf To Jpg
- Image To Pdf
- Image To Pdf Single
- Image To Pdf Batch
- Jpg To Pdf Single
- Jpg To Pdf Batch
- Png To Pdf
- Png To Pdf Single
- Png To Pdf Batch
Images
Image editing
- Image Cropper
- Rotate and Flip Images
- Add Text to Images
- Batch Image Watermark
- Image Color Adjuster
- Image Corners & Shadow
- Image Grid & Shape Slicer
- Photo to Oil Painting
- Photo to Pencil Sketch
- Image Borders
- Image Channel Mixer
- Frosted Glass Effect
- Doodle Board
- SVG Editor
- Photo Editor
- GIF Maker
- GIF Compressor
- GIF Frame Splitter
- GIF Cropper
- GIF Merger
- Avatar Decorations
- Offline Image Compression
- Image Editor
- Waifu2x Image Upscaler
- AI Super Resolution
Data formats
Structured data
- JSON Formatter
- JSON to CSV
- CSV to JSON
- JSON Escape / Unescape
- JSON / Query Parameters
- Reverse Array
- Key-value to JSON / JS
- Text to HTML Table
- HTML Formatter
- JavaScript Formatter
- CSS Formatter
- XML Formatter
- SQL Formatter
- C Formatter
- C++ Formatter
- C# Formatter
- Java Formatter
- PHP Formatter
- Python Formatter
- YAML Formatter
- Nginx Formatter
- JSON to C# Models
- Webpage Source Viewer
- Batch Meta Tag Extractor
- HTML Tag and Attribute Filter
- HTML Live Preview
Text encoding
- Text Encoding Converter
- Text Counter
- Encoding & Hash Toolkit
- Text Base64 Encoder / Decoder
- URL Encoder / Decoder
- UTF-8 Encoder / Decoder
- MD2 / MD4 / MD5 / SHA Hash Generator
- URL Parameter Formatter
- URL Batch Generator
- Unicode Escape Converter
- Latin-1 Mojibake Repair
- Text Diff
- Text Processing
- Deduplicate / Sort Lines
- Line Frequency
- Split Text
- Join Text Lines
- Text Escape / Unescape
- Reverse Text
- Text Whitespace Cleanup
- Filter Lines by Length
- Fixed-width Lines
- Chinese / English Punctuation
- Letter Case Converter
- Regular Expression Tester
- Directory Tree Generator
- Extract URLs
- Extract Email Addresses
- Extract Numbers
- HTML Entities
- Whitespace Converter
- Character & Word Frequency
- Morse Code
- Caesar Cipher
- Chinese Pinyin
- Simplified / Traditional Chinese
- Base16 / 32 / 58 / 62 / 64 / 85 / 91
- Punycode Converter
- Quoted-Printable Codec
- Zlib / Gzip / Deflate / Brotli
- JWT Decode, Sign & Verify
- Character Encoding Codec
- SHA Family Hashes
- HMAC-MD5
- HMAC-SHA
- SM3 Hash
- RIPEMD 128 / 160 / 256 / 320
- CRC Checksum
- AES Encrypt / Decrypt
- DES Encrypt / Decrypt
- TripleDES Encrypt / Decrypt
- SM4 Encrypt / Decrypt
- RC2 Encrypt / Decrypt
- RC4 Encrypt / Decrypt
- RC5 Encrypt / Decrypt
- RC6 Encrypt / Decrypt
- Blowfish Encrypt / Decrypt
- Rabbit Encrypt / Decrypt
- RSA Encrypt, Decrypt & Generate Keys
- SM2 Encrypt, Decrypt & Generate Keys
- File Hash Calculator
- File / Hex Converter
- Encoding Code Pages
- GB2312 Table
- GBK / CP936 Table
- GB18030 Inspector
- Big5 / CP950 Table
- Unicode Character Table
- UTF-16 Table and Inspector
- Special Symbols
- SSL Certificate Decoder
- PFX / P12 to PEM
- Self-signed SSL Certificate
- Clipboard Inspector
Data Charts
- Column Chart
- Radar Chart
- Line Chart
- Pie Chart
- Nightingale Rose Chart
- Candlestick Chart
- Streamgraph
- Doughnut Chart
- Scatter Plot
- Funnel Chart
- Grouped Column Chart
- Multi-series Line Chart
- Waterfall Chart
- Overlapping Area Chart
- Horizontal Bar Chart
- Step Line Chart
- Stacked Column Chart
- Diverging Bar Chart
- Stacked Bar Chart
- Grouped Bar Chart
- Stacked Area Chart
Audio & Speech
Audio Conversion
- Audio Converter & Compressor
- Mp3 To Wav
- Mp3 To Flac
- Mp3 To Aac
- Mp3 To Ac3
- Mp3 To Ogg
- Wav To Mp3
- Wav To Flac
- Wav To Aac
- Wav To Ac3
- Wav To Ogg
- Flac To Mp3
- Flac To Wav
- Flac To Aac
- Flac To Ac3
- Flac To Ogg
- Aac To Mp3
- Aac To Wav
- Aac To Flac
- Aac To Ac3
- Aac To Ogg
- Ac3 To Mp3
- Ac3 To Wav
- Ac3 To Flac
- Ac3 To Aac
- Ac3 To Ogg
- Ogg To Mp3
- Ogg To Wav
- Ogg To Flac
- Ogg To Aac
- Ogg To Ac3
Developer & Utilities
Numbers & Time
- Number Base Converter
- Timestamp Converter
- Byte Base Converter
- Signed / Unsigned Bytes
- IEEE 754 Converter
- Sign / Ones / Twos Complement
- IPv4 to IPv6
- Endian Converter
- Reverse Binary Bits
- Number Sort
- Date Calculator
- World Time Table
- Gregorian Leap Year
- Random Integers
- Age Calculator
- Text & Byte Base Converter
- Numbers to Chinese
- Numbers & English Words
- XOR Bytes
- Roman Numeral Converter
- BCC / LRC Checksum
- Cron Expression Parser
- Calendar with Chinese Lunar Dates
- Gregorian / Chinese Lunar Converter
- Chinese Lunar Leap Months
- Online Stopwatch
- Online Alarm Clock
- Keyboard Test
- Keyboard KeyCode Reference
- Mouse Button Test
- Screen Test
- Microphone Test
- Webcam Test
Video tools
Video conversion
- Video Format Converter
- Video to WEBM
- Video to FLV
- Video to 3GP
- Video to MPG
- Extract Audio from Video
- Video Compressor
- Video to GIF
- Avi To Mp4
- Avi To Mov
- Avi To Wmv
- Avi To Mkv
- Mp4 To Avi
- Mp4 To Mov
- Mp4 To Wmv
- Mp4 To Mkv
- Mov To Avi
- Mov To Mp4
- Mov To Wmv
- Mov To Mkv
- Wmv To Avi
- Wmv To Mp4
- Wmv To Mov
- Wmv To Mkv
- Mkv To Avi
- Mkv To Mp4
- Mkv To Mov
- Mkv To Wmv