Free online tools for text, data, developers and networks
Delimiter.live is a free collection of browser-based and web-based text, data conversion, formatting, extraction, encoding, developer, and network utility tools. Built for developers, analysts and writers, and every tool page states whether it runs on your device or on our server.
Popular tools
Browse all 115 tools →- Character Counter Count characters with and without spaces, live as you type. Text In your browser
- Cron Expression Generator Build a cron expression from a schedule, and see when it will run. Developer In your browser
- XML Validator Check that an XML document is well-formed. Developer In your browser
- List Comparison Find what two lists share and what only one of them has. Text In your browser
- Word Counter Count words, sentences and paragraphs while you write. Text In your browser
- URL Encoder and Decoder Percent-encode text for URLs, or decode it back. Encoding & Security In your browser
- JWT Decoder Read a JSON Web Token header, payload and expiry. Developer In your browser
- JSON Formatter Beautify, validate and sort JSON with precise error messages. Developer In your browser
- CSV to JSON Converter Turn CSV rows into a clean JSON array of objects. Data Conversion In your browser
- DNS Lookup Query A, AAAA, MX, NS, TXT, CNAME, SOA and SRV records. Network Server-side
- JSON Escape and Unescape Escape text for use inside a JSON string, or decode it back. Developer In your browser
- XML to JSON Converter Convert any XML document into readable JSON. Data Conversion In your browser
Tool categories
- Text Tools Count, clean, reformat and analyse written text. 22 tools
- Data Conversion Tools Move data between CSV, JSON, XML, YAML and TSV. 19 tools
- Developer Tools Format, validate, minify, hash, decode and generate. 41 tools
- Extraction Tools Pull emails, URLs, numbers and dates out of messy text. 10 tools
- Network & Web Tools Inspect DNS, IP addresses, headers and redirects. 9 tools
- Encoding & Security Tools Encode, hash, sign and generate strong secrets. 14 tools
Browse by topic
Why use Delimiter.live
Most tools run in your browser
Text, conversion, formatting, extraction and encoding tools run in JavaScript inside your browser tab. What you paste is never transmitted, logged or stored. A handful of tools genuinely need a server — DNS and IP lookups, header checks, QR codes and bcrypt — and every one of them carries a badge saying so.
No account, no limits, no upsell
There is no sign-up, no free tier and no paid tier. Every tool is fully available on the first visit, and output — including generated passwords, UUIDs and QR codes — is yours to use commercially.
Built to be read, not just clicked
Every tool page explains what the tool does, how to use it, where it will let you down, and which related tool to reach for instead. Limitations are stated plainly rather than hidden.
Tools for common workflows
Working with JSON
Format, validate and convert JSON without it leaving your browser.
Counting and cleaning text
Count characters and words, tidy pasted text and compare lists. Nothing is uploaded.
Validating and converting XML
Check that XML is well-formed, format it, and convert it to JSON or CSV.
URLs and redirects
Encode and decode URLs, split query strings apart, and trace where a link redirects.
Developer utilities
Decode JWTs, build cron schedules, convert Unix timestamps and test regular expressions.
DNS and network checks
Look up DNS records, IP addresses and response headers. These need our server to make the request.
Frequently used developer tools
All developer tools →- MIME Type Lookup Find the MIME type for any file extension, and back.
- Unix Timestamp Converter Convert between Unix timestamps and human dates.
- JSON Validator Check whether JSON is valid and see exactly where it breaks.
- JSON Minifier Strip whitespace from JSON and see the size saved.
- XML Formatter Indent XML so nested documents become readable.
- SQL Formatter Reformat dense SQL into readable, indented statements.
Frequently used text tools
All text tools →- Text Cleaner Strip formatting, smart quotes and invisible characters.
- Remove Duplicate Lines Strip repeated lines from a list and keep the order.
- Line Counter Count total, non-empty and unique lines in any list.
- Sentence Counter Count sentences and see the average sentence length.
- Paragraph Counter Count paragraphs and check their average length.
- Case Converter Switch text between upper, lower, title, sentence and code cases.
Recently added and updated
- CSV Column Extractor Keep only the columns you need from a CSV file. Data Conversion In your browser
- CSV Duplicate Remover Remove repeated rows from a CSV, by whole row or by key columns. Data Conversion In your browser
- CSV Sorter Sort CSV rows by one or more columns without a spreadsheet. Data Conversion In your browser
- CSV to Markdown Table Turn a spreadsheet export into a Markdown table. Data Conversion In your browser
- Cron Expression Parser Explain a cron expression in plain English and show its next runs. Developer In your browser
- Data URI Encoder Turn an SVG or snippet into an embeddable data: URI. Encoding & Security In your browser