JSON
AvailableJSON Formatter
Format, validate, minify, and sort JSON locally.
Privacy-first toolkit
Private browser-based tools for developers and everyday text tasks.
Format, validate, compare and transform data without uploading it.
Your data stays in your browser.
Search tools
Search browser-based tools that run locally on your device.
26 tools found
JSON
AvailableJSON Validator
Check JSON syntax and pinpoint invalid data.
JSON
AvailableJSON Minifier
Remove nonessential whitespace from JSON documents.
JSON
AvailableJSON Tree Viewer
Explore nested JSON objects in an expandable tree.
JSON
AvailableJSON Sort Keys
Sort JSON object keys for predictable file diffs.
JSON
AvailableJSON Escape / Unescape
Escape JSON strings or restore their readable characters.
JSON
AvailableJSON Compare
Compare two JSON documents and spot structural differences.
JSON
AvailableJSON Statistics
Summarize JSON size, structure, keys, and value types.
JSON
AvailableJSON Path Finder
Find and copy paths for nested JSON values locally.
Text
AvailableWord Counter
Count words, characters, sentences, and lines in text.
Text
AvailableText Case Converter
Switch text between upper, lower, title, and camel case.
Text
AvailableRemove Duplicate Lines
Keep one copy of each repeated line in a text list.
Text
AvailableRemove Empty Lines
Delete blank lines while preserving the remaining text.
Text
AvailableSort Lines
Arrange text lines alphabetically or in reverse order.
Text
AvailableText Cleaner
Normalize whitespace and tidy pasted text quickly.
Text
AvailableFind and Replace
Find matching text and replace it throughout a document.
Text
AvailableText Diff
See differences between two blocks of text at a glance.
Text
AvailableReverse Text
Reverse characters, words, or lines in a text block.
Text
AvailableLine Number Tool
Add, remove, and format line numbers in copied text.
Encoding
AvailableBase64 Encoder/Decoder
Convert plain text to or from Base64 safely.
Encoding
AvailableURL Encoder/Decoder
Encode or decode values for safe use in URLs.
Encoding
AvailableHTML Entity Encoder/Decoder
Convert special HTML characters to and from entities.
Encoding
AvailableUnicode Converter
Convert Unicode characters, escapes, and code points.
Encoding
AvailableHex Encoder/Decoder
Convert UTF-8 text and hexadecimal bytes locally.
Encoding
AvailableBinary Encoder/Decoder
Convert UTF-8 text and binary bytes locally.
Encoding
AvailableASCII Converter
Translate text between ASCII characters and numeric codes.
Browse by category
9 tools available
JSON Tools
Inspect, format, validate, and compare structured JSON data.
Explore JSON Tools10 tools available
Text Tools
Clean, compare, and transform everyday text without uploads.
Explore Text Tools7 tools available
Encoding Tools
Encode and decode common formats directly in your browser.
Explore Encoding ToolsPopular tools
JSON
AvailableJSON Formatter
Format, validate, minify, and sort JSON locally.
JSON
AvailableJSON Validator
Check JSON syntax and pinpoint invalid data.
JSON
AvailableJSON Compare
Compare two JSON documents and spot structural differences.
Text
AvailableWord Counter
Count words, characters, sentences, and lines in text.
Text
AvailableText Case Converter
Switch text between upper, lower, title, and camel case.
Encoding
AvailableBase64 Encoder/Decoder
Convert plain text to or from Base64 safely.
Encoding
AvailableURL Encoder/Decoder
Encode or decode values for safe use in URLs.
Built with privacy first
Toolseto is designed for local, browser-based work. There are no accounts, uploads, or hidden data collection.
How it works
- 1. Choose a tool for the task at hand.
- 2. Paste or enter your data directly in your browser.
- 3. Copy the result when you are done.