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© 2026 Elysia Tools. Developer documentation.

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3201 tools

GPX to GeoJSON Converter

text

Format Conversion

Convert GPX (GPS Exchange Format) to GeoJSON format

gpx-to-geojson

PDF RTL/LTR Support Tester (PDF双向文字测试)

file

Document Tools

Preview left-to-right and right-to-left text flow in PDF with bidi reordering

pdf-rtl-ltr-support

PDF Section & TOC Generator (PDF章节目录生成器)

file

Document Tools

Build a PDF with a generated table of contents and section placeholders

pdf-section-toc-generator

Group By

text

Data Processing

Group items by a derived key using lodash _.groupBy

group-by

Remove Image Background

file

Design

Remove image backgrounds and export a transparent PNG

image-background-remover

IBAN Validator

text

Validation

Validate International Bank Account Numbers (IBAN)

iban-validator

Join Array

text

Data Processing

Join array items into a single string with a custom separator

join-array

Pull Values

text

Data Processing

Remove specific values from an array using lodash _.pull

pull-values

Remove By Predicate

text

Data Processing

Remove items that match a predicate using lodash _.remove

remove-by-predicate

Reverse Array

text

Data Processing

Reverse an array using lodash _.reverse

reverse-array

HTML Attribute Extractor

json

Development

Extract specified attributes (href, src, data-*, etc.) from HTML content with tag name filtering support

html-attribute-extractor

Glob to Regex

json

Development

Convert file matching patterns (Glob) to regular expressions

glob-to-regex
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