Programming & Design

Regular Expression Tester can define your own regular expression (regex) to search the input data with, optionally choosing from a list of pre-defined patterns.

BIP39 Passphrase Generator can generate BIP39 passphrase from existing or random mnemonic, or get the mnemonic from the passphrase.

Excel/CSV To JSON Converter can convert copied Excel data or CSV data into multiple formats such as JSON, XML, HTML, MySQL, PHP, Python, and more. Simply copy and paste the data from an Excel or CSV file to perform the conversion!

SRT To VTT Converter enables seamless conversion between SubRip Subtitle(.srt) and Web Video Text Tracks (WebVTT)(.vtt) subtitle file formats. Simply select either an .srt or .vtt formatted file, and the converter will automatically transform it into the another format.

SRT Editor is an online subtitle editor for SubRip Subtitle (SRT) file, it allows you to batch-adjust the playback speed and timing offset of subtitles, and also provides the ability to individually adjust the order, timecodes, and text of each subtitle segment.

SRT To ASS Converter enables seamless conversion between .srt and .ass subtitle file formats. Simply select either an .srt or .ass formatted file, and the converter will automatically transform it into the another format.

SRT To TXT Converter can transform subtitle files in .srt format into plain text (.txt) files. Simply paste the SRT subtitle content into the provided text box or select an SRT file, and it will automatically extract the textual content from the subtitles. Afterwards, you can copy the text or download it as a .txt file for further use.

Compute your chmod permissions and commands with this online chmod calculator for free.

Validate and generate crontab (cron table) and get the human readable description of the cron schedule.

HTML entities encoding online tool that could escape or unescape html entities (replace <,>, &, " and \' to their html version) for free.

Generate and validate time-based OTP (one time password) code for multi-factor authentication.

SCSS To CSS Converter could compile your SCSS code into CSS code.