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412 tools · No registration · Temporary file processing
Video Format ConverterBatch-convert common videos to MP4, WEBM, FLV, 3GP, MPG, MOV, MKV, AVI or WMV with verified output.MP4 · MOV · MKV · WEBM · AVI · M4V · MPG · MPEG · WMV · FLV · 3GP · 3G2 · TS · GIFText to SpeechEnter Chinese, English or mixed paragraphs, set voices, speed and pauses, preview, and synthesize MP3 or WAV.JSONAudio to TextUpload or record audio, recognize Chinese and English locally, review segments with a waveform, and export TXT, SRT or VTT.MP3 · WAV · M4A · OGG · FLAC · AAC · WEBM · MP4 · JSONVideo to WEBMBatch-convert to VP9/Opus WEBM and verify duration, dimensions and audio.MP4 · MOV · MKV · AVI · M4V · MPG · MPEG · WMV · FLV · 3GP · 3G2 · TS · GIFSubtitle Generator & EditorImport subtitles or generate from audio, edit both languages, drag timing, set styles and export SRT, VTT or ASS.SRT · VTT · ASS · JSON · MP3 · WAV · M4A · AAC · OGG · FLACVideo to FLVBatch-convert videos to FLV and verify the actual output.MP4 · MOV · MKV · WEBM · AVI · M4V · MPG · MPEG · WMV · 3GP · 3G2 · TS · GIFVideo to 3GPBatch-convert to H.264/AAC 3GP for systems requiring the 3GP container.MP4 · MOV · MKV · WEBM · AVI · M4V · MPG · MPEG · WMV · FLV · TS · GIFVideo to MPGBatch-convert to MPEG-2/MP2 MPG and verify the actual output.MP4 · MOV · MKV · WEBM · AVI · M4V · WMV · FLV · 3GP · 3G2 · TS · GIFExtract Audio from VideoBatch-extract the first audio track from videos to MP3, WAV, M4A, OGG, FLAC, Opus, AAC, AC3 or PCM.MP4 · MOV · MKV · WEBM · AVI · M4V · MPG · MPEG · WMV · FLV · 3GP · 3G2 · TSVideo CompressorBatch-compress common videos while keeping their source resolution, frame rate and container, with actual size changes shown.MP4 · MOV · MKV · WEBM · AVI · M4V · MPG · MPEG · WMV · FLV · 3GP · 3G2Periodic TableExplore 118 elements, atomic weights and electron configurations. Search, filter and export.Domain IP LookupQuery IPv4, IPv6 and CNAME records, copy answers and export JSON.Encoding & Hash ToolkitBase64, URL and UTF-8 codecs plus MD2, MD4, MD5, SHA1, SHA256 and SHA512 digests.Video to GIFBatch-convert videos to looping GIFs, or convert GIFs to nine video formats.MP4 · MOV · MKV · WEBM · AVI · M4V · MPG · MPEG · WMV · FLV · 3GP · 3G2 · TS · GIFCountries, Capitals, Flags & DatesExplore capitals, flags and formation or independence milestones for 195 countries. Filter by region and export CSV.Unit ConverterConvert 26 categories including pace, current, voltage, apparent power, reactive energy and illuminance. Export all results.Text Base64 Encoder / DecoderEncode and decode UTF-8 text as Base64 or Base64URL, including Unicode and Emoji.Video Frame ExtractorSelect moments, extract at intervals, crop a picture region and download original video frames as PNG, WebP or JPG.MP4 · MOV · MKV · WEBM · AVI · M4V · MPG · MPEG · WMV · FLV · 3GP · 3G2 · TS · GIFColor PlaygroundVisual color selection, contrast, complementary, analogous and square colors, plus lightness and saturation gradients.URL Encoder / DecoderPercent-encode or decode URL components, complete URLs and form values.Video MergerJoin video or audio clips in your chosen order, with canvas fitting, silence padding and nine video output formats.MP4 · MOV · MKV · WEBM · AVI · M4V · MPG · MPEG · WMV · FLV · 3GP · 3G2 · TS · GIF · MP3 · WAV · M4A · OGG · FLAC · AAC · OPUS · AC3 · WMAImage Grid & Shape SlicerNine-grid and custom grid slicing with hearts, ellipses and editable polygons. Download PNG tiles or ZIP.UTF-8 Encoder / DecoderConvert text to and from UTF-8 hex, percent, escaped or decimal bytes.Add Text to VideoAdd text layers, titles or timed captions. Set fonts, colors, opacity, position and timing, then export MP4.MP4 · MOV · MKV · WEBM · AVI · M4V · MPG · MPEG · WMV · FLV · 3GP · 3G2 · TS · GIF · PNG
Complete tool index
Open any tool page directly by category.
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