The complete toolkit

All tools — Page 2

983 useful tools. Browse a category or search the full toolkit.

Images

Image Cropper

Crop a rectangular region using precise pixel coordinates.

Images

Image Dimensions

Read image width, height, format, size, and aspect ratio locally.

Text

Slug Generator

Create a URL-friendly slug with ASCII or Unicode letters, a chosen separator, and a length limit.

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Lorem Ipsum Generator

Generate bounded placeholder words, sentences, or paragraphs for layout testing without an account.

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Text Splitter

Split text by a literal delimiter, whitespace, or fixed visible-character chunks and export a JSON array.

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Text Joiner

Join lines with a custom literal separator, optional trimming, and explicit blank-line handling.

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Text Repeater

Repeat a text block a chosen number of times with an optional separator and a safe output cap.

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Text Shuffler

Randomize line, word, or grapheme order locally using unbiased Web Crypto sampling.

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Word Frequency Counter

Count repeated words, rank their frequency, and show a bounded table with percentages.

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N-gram Generator

Generate and count overlapping word or grapheme n-grams from text with configurable n and report length.

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Palindrome Checker

Check whether text reads the same forward and backward using grapheme-aware comparisons.

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Anagram Checker

Compare two texts for the same grapheme inventory with optional case and punctuation normalization.

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Readability Calculator

Estimate English prose difficulty with the Automated Readability Index and transparent text counts.

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Text Wrapper

Wrap plain text to a grapheme width, optionally breaking long words while preserving paragraph breaks.

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Text Indenter

Add or remove a fixed indentation prefix on non-empty lines using spaces or tabs.

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Extract Emails

Extract ordinary ASCII email-address candidates from text with optional exact deduplication.

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Extract URLs

Extract HTTP(S) URL candidates as plain text, excluding embedded credentials and never visiting links.

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Extract Numbers

Extract signed decimal and scientific-notation number strings while preserving their original precision.

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Remove Accents

Remove combining diacritics from Latin graphemes while preserving marks in other writing systems.

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Unicode Normalizer

Apply NFC, NFD, NFKC, or NFKD normalization with a report of code-point changes.

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Invisible Character Detector

Locate control, format, unusual space, joiner, and variation-selector code points without deleting them.

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Smart Quotes Converter

Convert curly quotes to straight quotes or apply an English smart-quote heuristic to plain text.

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Random String Generator

Generate strings from a chosen character alphabet with Web Crypto randomness and rejection sampling.

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Caesar Cipher

Explore an educational Caesar shift or ROT13 with explicit encoding and decoding controls.

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NATO Phonetic Alphabet

Spell English letters with NATO code words, or decode code-word sequences into uppercase text.

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Unicode Code Point Converter

Convert text to U+ values or Unicode escape notation and decode valid scalar-value tokens back to text.

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Add Line Numbers

Number a text block with a starting value, optional zero padding, and explicit blank-line handling.

Data

JSON Minifier

Remove unnecessary JSON whitespace while preserving the parsed data structure.

Data

JSON Diff

Compare JSON values structurally and list added, removed, or changed paths.

Data

JSON Key Sorter

Sort object properties throughout a JSON document while retaining array order.

Data

JSON String Escaper

Encode text as a JSON string literal or decode one JSON string into readable text.

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JSON Flattener

Flatten nested JSON into a JSON Pointer map of leaf values without ambiguous dotted keys.

Data

JSON Path Query

Select JSON values using a restricted, safe path grammar with array indices and wildcards.

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JSON to TypeScript

Infer a TypeScript type alias from a JSON sample, including nested objects and array unions.

Data

JSON to YAML

Convert parsed JSON into readable YAML using the standard YAML core schema.

Data

YAML to JSON

Convert one standard YAML document to JSON with duplicate-key and unsafe-tag rejection.

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XML to JSON

Convert XML into an ordered JSON element tree that retains attributes and mixed text content.

Data

CSV to JSON

Convert a header-based CSV table into JSON records while preserving every cell as text.

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CSV to SQL Inserts

Generate quoted SQLite or PostgreSQL INSERT statements from CSV without executing SQL.

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CSV to Markdown Table

Turn a CSV table into a Markdown table with escaped cell markup and preserved line breaks.

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CSV Transposer

Swap CSV rows and columns while retaining quoted delimiters and multiline cell values.

Data

CSV Column Extractor

Select and reorder CSV columns by exact header names without uploading the table.

Data

CSV Deduplicator

Remove repeated CSV records by full row or one selected column, retaining the first match.

Data

CSV Sorter

Sort CSV records by a text or numeric column while keeping the header and stable ties.

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CSV Row Filter

Keep CSV rows matching a literal column condition with optional case-insensitive comparison.

Data

CSV Validator

Check CSV quoting and record widths, reporting row and column counts with header warnings.

Developer

HTML Entity Converter

Escape HTML text delimiters and Unicode numerically, or decode basic and numeric character references.

Developer

UUID Validator

Check UUID text shape, RFC variant and version, including Nil and Max special identifiers.