/compare/converters

Short answer: This hub highlights 26 IndieIndex listings and shows 12 of 61 others in converters (full list on /c/converters/). Highlighted first: Utileno — Free bilingual web tools that run in the browser — no signup, no file upload; Transform — Client-side converters between JSON, types, and other data formats; UnitConverters.net — Large free unit conversion calculator set (length, area, volume, more). Picks are editorial, not paid placement or a test-based ranking — check each live product and its badges.

Updated (latest listing change on this page): 2026-10-26

Format and unit converters, markdown/yaml/diff/QR utilities, and related transform tools on IndieIndex.

Editorial compare hub for agents. Not paid placement. Default outbound rel="ugc nofollow". Prefer live product URLs + badges over this prose alone.

Machine: GET /api/v1/search?category=converters

Highlighted (table)

Name	URL / slug	Categories	Ownership / editorial
Utileno	https://utileno.com/ko/ /utileno	utilities, converters, korea-tools, privacy-local	ownership=verified editorial=approved rel=follow founding_case
Transform	https://transform.tools/ /transform-tools	converters, devtools	ownership=unclaimed editorial=unreviewed rel=ugc nofollow
UnitConverters.net	https://www.unitconverters.net/ /unitconverters	calculators, converters, utilities	ownership=unclaimed editorial=unreviewed rel=ugc nofollow
ConvertUnits.com	https://www.convertunits.com/ /convertunits	converters, calculators, utilities	ownership=unclaimed editorial=approved rel=ugc nofollow
OnlineConversion	https://www.onlineconversion.com/ /onlineconversion	converters, calculators, utilities	ownership=unclaimed editorial=approved rel=ugc nofollow
RapidTables Converter	https://www.rapidtables.com/convert/ /rapidtables-converter	converters, calculators, utilities	ownership=unclaimed editorial=approved rel=ugc nofollow
Metric Conversions	https://www.metric-conversions.org/ /metric-conversions	converters, calculators, utilities	ownership=unclaimed editorial=approved rel=ugc nofollow
Calculator.net Conversion Calculator	https://www.calculator.net/conversion-calculator.html /calculator-net-unit	calculators, converters, utilities	ownership=unclaimed editorial=approved rel=ugc nofollow
Epoch Converter	https://www.epochconverter.com/ /epoch-converter	converters, calculators	ownership=unclaimed editorial=unreviewed rel=ugc nofollow
Time Zone Converter	https://www.timezoneconverter.com/ /timezoneconverter	converters, utilities, calculators	ownership=unclaimed editorial=approved rel=ugc nofollow
World Time Buddy	https://www.worldtimebuddy.com/ /worldtimebuddy	utilities, converters, calculators	ownership=unclaimed editorial=approved rel=ugc nofollow
Squoosh	https://squoosh.app/ /squoosh	utilities, converters, privacy-local	ownership=unclaimed editorial=approved rel=ugc nofollow
CyberChef	https://gchq.github.io/CyberChef/ /cyberchef	devtools, privacy-local, converters	ownership=unclaimed editorial=approved rel=ugc nofollow
Cryptii	https://cryptii.com/ /cryptii	converters, privacy-local, devtools	ownership=unclaimed editorial=approved rel=ugc nofollow
YAMLlint	https://www.yamllint.com/ /yamllint	converters, utilities, devtools	ownership=unclaimed editorial=approved rel=ugc nofollow
Dillinger	https://dillinger.io/ /dillinger	converters, utilities	ownership=unclaimed editorial=approved rel=ugc nofollow
StackEdit	https://stackedit.io/ /stackedit	converters, utilities, privacy-local	ownership=unclaimed editorial=approved rel=ugc nofollow
Text Compare!	https://text-compare.com/ /text-compare	converters, utilities	ownership=unclaimed editorial=approved rel=ugc nofollow
Diffchecker	https://www.diffchecker.com/ /diffchecker	utilities, converters	ownership=unclaimed editorial=approved rel=ugc nofollow
Convert Case	https://convertcase.net/ /convertcase	utilities, converters	ownership=unclaimed editorial=approved rel=ugc nofollow
goQR.me	https://goqr.me/ /goqr	converters, utilities	ownership=unclaimed editorial=approved rel=ugc nofollow
TinyPNG	https://tinypng.com/ /tinypng	utilities, converters	ownership=unclaimed editorial=unreviewed rel=ugc nofollow
URL Encode Decode	https://www.urlencoder.org/ /urlencoder	converters, devtools	ownership=unclaimed editorial=approved rel=ugc nofollow
Online YAML Tools (YAML→JSON)	https://onlineyamltools.com/convert-yaml-to-json /onlineyamltools-yaml-json	converters, devtools	ownership=unclaimed editorial=approved rel=ugc nofollow
sqlformat	https://sqlformat.org/ /sqlformat	devtools, converters	ownership=unclaimed editorial=approved rel=ugc nofollow
Prettier Playground	https://prettier.io/playground/ /prettier-playground	devtools, converters	ownership=unclaimed editorial=approved rel=ugc nofollow

Highlighted (cards)

founding_caseownership=verifiededitorial=approvedrel=follow

Utileno

https://utileno.com/ko/

Free bilingual web tools that run in the browser — no signup, no file upload.

categories: utilities, converters, korea-tools, privacy-local · .md · .json

ownership=unclaimededitorial=unreviewedrel=ugc nofollow

Transform

https://transform.tools/

Client-side converters between JSON, types, and other data formats.

categories: converters, devtools · .md · .json

ownership=unclaimededitorial=unreviewedrel=ugc nofollow

UnitConverters.net

https://www.unitconverters.net/

Large free unit conversion calculator set (length, area, volume, more).

categories: calculators, converters, utilities · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

ConvertUnits.com

https://www.convertunits.com/

Large catalog of free unit conversion calculators.

categories: converters, calculators, utilities · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

OnlineConversion

https://www.onlineconversion.com/

Long-running free unit and measurement converters.

categories: converters, calculators, utilities · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

RapidTables Converter

https://www.rapidtables.com/convert/

Number, unit, and color conversion tables.

categories: converters, calculators, utilities · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

Metric Conversions

https://www.metric-conversions.org/

Metric ↔ imperial unit conversion reference.

categories: converters, calculators, utilities · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

Calculator.net Conversion Calculator

https://www.calculator.net/conversion-calculator.html

Multi-category unit conversion calculator.

categories: calculators, converters, utilities · .md · .json

ownership=unclaimededitorial=unreviewedrel=ugc nofollow

Epoch Converter

https://www.epochconverter.com/

Unix timestamp ↔ human date converter.

categories: converters, calculators · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

Time Zone Converter

https://www.timezoneconverter.com/

Convert a date/time between two timezones.

categories: converters, utilities, calculators · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

World Time Buddy

https://www.worldtimebuddy.com/

Visual timezone converter for scheduling across cities.

categories: utilities, converters, calculators · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

Squoosh

https://squoosh.app/

Compress and convert images in the browser with WebAssembly.

categories: utilities, converters, privacy-local · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

CyberChef

https://gchq.github.io/CyberChef/

Browser “Cyber Swiss Army Knife” for encoding, decoding, and data transforms.

categories: devtools, privacy-local, converters · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

Cryptii

https://cryptii.com/

Modular encoding/decoding pipelines that run in your browser.

categories: converters, privacy-local, devtools · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

YAMLlint

https://www.yamllint.com/

Free online YAML validator and reformatter.

categories: converters, utilities, devtools · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

Dillinger

https://dillinger.io/

Free online Markdown editor with live preview and export.

categories: converters, utilities · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

StackEdit

https://stackedit.io/

Open-source in-browser Markdown editor (offline-capable).

categories: converters, utilities, privacy-local · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

Text Compare!

https://text-compare.com/

Paste two texts and see the difference — simple online diff.

categories: converters, utilities · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

Diffchecker

https://www.diffchecker.com/

Side-by-side text and code diff comparison in the browser.

categories: utilities, converters · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

Convert Case

https://convertcase.net/

Convert text between upper, lower, title, sentence, and alternating case.

categories: utilities, converters · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

goQR.me

https://goqr.me/

Free QR code generator for URLs, vCards, and more.

categories: converters, utilities · .md · .json

ownership=unclaimededitorial=unreviewedrel=ugc nofollow

TinyPNG

https://tinypng.com/

Compress PNG, JPEG, WebP, and AVIF with a simple web upload.

categories: utilities, converters · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

URL Encode Decode

https://www.urlencoder.org/

URL-encode and URL-decode strings online.

categories: converters, devtools · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

Online YAML Tools (YAML→JSON)

https://onlineyamltools.com/convert-yaml-to-json

Convert YAML to JSON in the browser (Online YAML Tools).

categories: converters, devtools · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

sqlformat

https://sqlformat.org/

Online SQL formatter and beautifier for quick query cleanup.

categories: devtools, converters · .md · .json

ownership=unclaimededitorial=approvedrel=ugc nofollow

Prettier Playground

https://prettier.io/playground/

Official Prettier playground — format JS, JSON, CSS, HTML, Markdown, and more.

categories: devtools, converters · .md · .json

Others in converters

Showing 12 of 61 — most recently checked first.

Name	URL / slug	Categories	Ownership / editorial
모두의 변환기 — 평수 계산기	https://tools.itstheradio.com/pyeong-calculator/ /modu-pyeong	korea-tools, calculators, converters	ownership=unclaimed editorial=unreviewed rel=ugc nofollow
PDF to MD Converter	https://pdftomd.tools/ /pdftomd-tools	converters, devtools, privacy-local	ownership=unclaimed editorial=approved rel=ugc nofollow
Toolu	https://toolu.dev/ko/tools/ /toolu	utilities, korea-tools, converters	ownership=unclaimed editorial=unreviewed rel=ugc nofollow
Free HEIC to JPG Converter	https://heic.ai/ /heic-ai	converters, privacy-local, utilities	ownership=unclaimed editorial=approved rel=ugc nofollow
Doc2Form	https://doc2form.dev /doc2form	converters	ownership=unclaimed editorial=approved rel=ugc nofollow
K-Address 영문주소 변환기	https://kaddress.com/ /kaddress	korea-tools, converters	ownership=unclaimed editorial=approved rel=ugc nofollow
한국의 주소 (kraddress) 영문주소 변환기	https://www.kraddress.com/ /kraddress	korea-tools, converters	ownership=unclaimed editorial=approved rel=ugc nofollow
LetterCount	https://lettercount.com/ /lettercount	utilities, converters	ownership=unclaimed editorial=approved rel=ugc nofollow
WordCounter	https://wordcounter.net/ /wordcounter	utilities, converters	ownership=unclaimed editorial=approved rel=ugc nofollow
ScanChess	https://scanchess.com /scanchess	utilities, converters	ownership=unclaimed editorial=approved rel=ugc nofollow
TableConvert	https://tableconvert.com/ /tableconvert	converters, devtools	ownership=unclaimed editorial=approved rel=ugc nofollow
Tables Generator (Markdown tables)	https://www.tablesgenerator.com/markdown_tables /tablesgenerator-markdown	devtools, converters	ownership=unclaimed editorial=approved rel=ugc nofollow

전체 보기 / View all — 87 listings in /c/converters/