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19 products. Built and run by us.

Knowledge libraries, toolkits, AI platforms and Android apps: designed, engineered and operated in-house. The same team builds for clients.

Last reviewed · 1 Oct 202614 primary sources →Kalenux engineering
12Web platforms6Android apps1Open source
Browse all products ↓Build yours with us
kalenux / status● all systems operational
PRODUCTLAST 24 CHECKSSTATUS
WNWhen Notes Flywhennotesfly.comlive
WYWhats Your IQwhats-your-iq.comlive
FFileformerfileformer.comlive
QBQR & Barcode Toolqr-bar-code.comlive
MMirgentmirgent.com.trbeta
CCitePepcitepep.comfounding
CCertoJobcertojob.comlive
CCorpycorpy.xyzlive
ESExhibition Stands EUexhibition-stands.eulive
DUDown Under Cafedownundercafe.comlive
EEvolangevolang.infolive
SAStrange Animalsstrangeanimals.infolive
PPhoneCMDGoogle Playlive
VCVSCoder CopilotGoogle Playlive
QBQR & Barcode ScannerGoogle Playlive
PEPDF & EPUB ReaderGoogle Playlive
PHPhone Health CheckerGoogle Playlive
TFTrue File LockerGoogle Playlive
KKalenuxerGitHuboss
WNWhen Notes Flywhennotesfly.comlive
WYWhats Your IQwhats-your-iq.comlive
FFileformerfileformer.comlive
QBQR & Barcode Toolqr-bar-code.comlive
MMirgentmirgent.com.trbeta
CCitePepcitepep.comfounding
CCertoJobcertojob.comlive
CCorpycorpy.xyzlive
ESExhibition Stands EUexhibition-stands.eulive
DUDown Under Cafedownundercafe.comlive
EEvolangevolang.infolive
SAStrange Animalsstrangeanimals.infolive
PPhoneCMDGoogle Playlive
VCVSCoder CopilotGoogle Playlive
QBQR & Barcode ScannerGoogle Playlive
PEPDF & EPUB ReaderGoogle Playlive
PHPhone Health CheckerGoogle Playlive
TFTrue File LockerGoogle Playlive
KKalenuxerGitHuboss
// 12 web platforms

Platforms people use every day.

Knowledge libraries, toolkits and AI products: each researched, designed and run by our team.

01 / 19Knowledge libraryLive

When Notes Fly

In-depth, source-backed guides that read like book chapters, not blog posts.

A long-form knowledge library where every guide is researched, sourced and edited like a book chapter. Articles are organised into six knowledge areas and kept current with a correction and refresh workflow.

BUILT FORCurious readers, students and professionals who want depth, not listicles.
Visit whennotesfly.com →Full product page
01
6knowledge areas
whennotesfly.com/psychology/memory
CONTENTS1 · Encoding2 · Storage3 · Recall4 · Forgetting5 · Sleep
CHAPTER 3 · 14 MIN READHow recall actually works
E
[1] Tulving, 1972[2] Roediger, 2006
01Book-chapter depthGuides built to be read start to finish, with clear structure and summaries.
02Primary sourcesClaims link back to studies, papers and original documents.
03Six knowledge areasScience, history, psychology, technology, health and culture.
04NewsletterNew guides delivered weekly: free, no paywall.
02 / 19Cognitive platformLive

Whats Your IQ

Test, train, solve and learn: IQ test with four cognitive subscores.

A cognitive platform that goes beyond a single score. The IQ test reports four subscores, and the training, puzzle and learning sections turn the result into something you can actually improve.

BUILT FORAnyone curious about how they think, and people who want to train it.
Visit whats-your-iq.com →Full product page
02
175tests
QUESTION 14 / 40 · SPATIAL
◆◇◆◇◆◇◆◇?
ABCD
YOUR PROFILE118
Verbal112
Numerical124
Spatial119
Logical121
Train verbal next →
01Four subscoresVerbal, numerical, spatial and logical reasoning reported separately.
02175 testsTimed tests and practice sets across every cognitive area.
03Nine languagesFully localised: questions, results and explanations.
04Train & learnPuzzles and lessons targeted at your weakest area.
03 / 19File toolkitLive

Fileformer

100+ browser-based converters, compressors, PDF and image tools in one place.

Visit fileformer.com →Full product page
03
100+tools
0sign-ups
DOCXreport-q3.docx2.4 MB
converting
PDFreport-q3.pdf1.1 MB · ↓ 54%
PDF → WordJPG → PNGCompress PDFMerge PDFMP4 → MP3HEIC → JPGSplit PDFResize imageSign PDFWEBP → PNGProtect PDF+ 90 more

More than a hundred file tools in one place: document, image, audio and video converters, PDF editing and compression. Files are processed quickly and nothing needs an account.

BUILT FORAnyone who needs to convert, compress or edit a file right now, without installing anything.
01100+ toolsConvert, compress, merge, split and edit in one toolkit.
02PDF suiteMerge, split, rotate, protect, sign and compress PDFs.
03Image toolsResize, crop, convert and optimise for the web.
04No sign-upOpen a tool, drop a file, download the result.
04 / 19QR & barcode toolkitLive

QR & Barcode Tool

Generate, style, scan and export 35+ code formats, one at a time or in batch.

A complete code studio: generate, style, scan and export more than 35 QR and barcode formats, one at a time, or in batch from a spreadsheet, with print-ready exports.

BUILT FORMarketers, retailers and developers who generate codes at scale.
Visit qr-bar-code.com →Full product page
04
35+formats
QR · error level H
CODE 128
BATCH · products.csv
SKU-1042✓
SKU-1043✓
SKU-1044…
PNGSVGPDF
0135+ formatsQR, EAN, UPC, Code 128, Data Matrix, PDF417 and more.
02StylingColours, logos, frames and error-correction levels.
03Batch modeGenerate hundreds of codes from a list in one go.
04Print-readyExport PNG, SVG or PDF at any resolution.
05 / 19Social growth OSOpen beta

Mirgent

AI agents for content, lead discovery and scheduling: approval-gated.

Visit mirgent.com.tr →Full product page
05
19networks
Freeplan
APPROVAL QUEUE · 3 WAITING
Li
Content agent · LinkedIn“3 lessons from shipping 19 products in-house…”
ApproveEdit
X
Lead agent · XReply to @founder_ana about launch analytics
ApproveEdit
Ig
Scheduler · InstagramCarousel · Tue 09:30 · best time for your audience
ApproveEdit
19 networks

A social growth operating system. AI agents draft content, discover leads and schedule posts across 19 networks, and nothing goes live until you approve it.

BUILT FORFounders, creators and small teams growing on social without a full-time marketer.
01Content agentDrafts posts in your voice for each network.
02Lead discoveryFinds conversations and accounts worth engaging.
03SchedulingPlan and publish across 19 networks from one calendar.
04Approval-gatedEvery action waits for a human yes.
06 / 19Public trust recordFounding network

CitePep

Records who authored, reviewed and fact-checked a page: reputation you earn.

A public trust record for the web. CitePep records who authored, reviewed and fact-checked a page, so reputation is earned from accepted work, with corrections kept public, not hidden.

BUILT FORWriters, reviewers and fact-checkers who want credit for accurate work.
Visit citepep.com →Full product page
06
Publicrecord
citepep.com/record/sleep-and-memory
Sleep and memory consolidation✓ verified
AUTHOREDDr. M. Aydınneuroscience · 41 accepted
REVIEWEDJ. Kellersleep research · 18 accepted
FACT-CHECKEDS. Rao12 claims · 12 sources
CORRECTION LOG · PUBLIC12 Mar: Study year corrected (2004 → 2006)
01Authorship recordWho wrote, reviewed and checked each page.
02Earned reputationOnly accepted work counts toward a profile.
03Public correctionsFixes are logged openly, with dates.
04Embeddable badgePublishers show the record on their own pages.
07 / 19Exam-to-career prepLive

CertoJob

Blueprint-mapped guides and practice tests for certifications and exams.

Exam preparation mapped to official blueprints. Every guide and question is tied to a blueprint objective, so you know exactly what you have covered, and what still needs work.

BUILT FORCandidates preparing for professional certifications and career exams.
Visit certojob.com →Full product page
07
2,400+questions
EXAM BLUEPRINT · READINESS
Domain 192%
Domain 274%
Domain 358%
Domain 481%
Domain 540%
Focus next: Domain 5 objectives →
PRACTICE · Q 27Which control best limits lateral movement after a breach?✓ Network segmentationPassword rotationFull-disk encryptionObjective 3.2 · explanation ↓
01Blueprint-mappedContent follows the official exam objectives.
022,400+ questionsPractice tests with full explanations.
0340+ examsIT, cloud, security, project management and more.
04Progress trackingSee readiness per objective before exam day.
08 / 19Formation intelligenceLive

Corpy

Compare countries, entities, tax and free zones before you incorporate.

Visit corpy.xyz →Full product page
08
170+profiles
8countries
corpy.xyz/compare
Compare jurisdictionsLLC · 1 founder
SetupTimeTaxEstonia€2651 day0%*UAE free zone€3.9k5 days0–9%Ireland€505 days12.5%Delaware$902 days21%
* on retained profits · illustrative

Formation intelligence that compares countries, entity types, tax treatment and free zones side by side, before you commit to a jurisdiction.

BUILT FORFounders and advisors choosing where and how to incorporate.
01Country comparisonCosts, timelines and requirements side by side.
02Entity typesWhat each structure means for liability and tax.
03Free zonesBenefits and trade-offs of special economic zones.
04170+ profilesStructured company and jurisdiction profiles.
09 / 19Exhibition intelligenceLive

Exhibition Stands EU

Vetted stand builders, fair calendars and booth cost planning across Europe.

Exhibition intelligence: a directory of vetted stand builders, a calendar of major European fairs and a planner that estimates booth costs before you request quotes.

BUILT FORExhibitors planning a trade-fair presence in Europe.
Visit exhibition-stands.eu →Full product page
09
500+builders
HALL 4 · FLOOR PLAN
Your booth · 36 m²€24–31k
UPCOMING FAIRS
OctFrankfurtBook fair
NovMunichElectronics
JanBerlinFood & ag
FebNurembergOrganic
01Vetted builders500+ stand builders with portfolios and regions.
02Fair calendar50+ major European trade fairs with dates and venues.
03Cost plannerEstimate booth budgets by size and build type.
04Quote requestsContact builders directly from their profiles.
10 / 19Cafe discoveryLive

Down Under Cafe

Cafes profiled by what they feel like inside: WiFi, noise, work score.

Visit downundercafe.com →Full product page
10
50+cities
1work score
7.18.46.29.27.8
The Grind Room9.2
WiFifast
Noiselow
Powerlots

Cafe discovery by what a place actually feels like inside. Every cafe is profiled on WiFi, noise, seating and power: rolled into a single work score.

BUILT FORRemote workers and cafe lovers looking for the right place to sit.
01Work scoreOne number for how workable a cafe is.
02WiFi & powerConnection quality and socket availability.
03Noise & vibeHow loud it gets and when.
0450+ citiesProfiles across cities worldwide.
11 / 19Language & writingLive

Evolang

Write, communicate and learn languages: templates, grammar and 10+ languages.

A language and writing platform: ready-to-use templates, grammar explanations and learning material in English and more than ten other languages: free, with no login.

BUILT FORLearners and professionals who write and communicate in more than one language.
Visit evolang.info →Full product page
11
11+languages
evolang.info/templates/follow-up-email
ENDEESFRTR+6
BETREFFNachfrage zu unserem GesprächSehr geehrte Frau Weber,
vielen Dank für das angenehme Gespräch am Dienstag…
GRAMMAR · ADJECTIVE ENDINGSdas + neuter noun → -e ending after a definite article
01TemplatesEmails, letters and messages for real situations.
02GrammarClear explanations with examples.
0310+ languagesLearning material beyond English.
04No loginOpen and use: nothing to sign up for.
12 / 19Wildlife encyclopediaLive

Strange Animals

The strangest, rarest and most extreme creatures, with the real biology.

A wildlife encyclopedia of the strangest, rarest and most extreme creatures on Earth: written with the real biology behind the headline.

BUILT FORNature fans, students and anyone who loves a good "wait, really?"
Visit strangeanimals.info →Full product page
12
500+articles
photo · axolotl
AxolotlAmbystoma mexicanumCritically endangered
WHY IT’S STRANGE●Regrows limbs, heart and parts of its brain●Stays in larval form its whole life●Lives in one lake system on Earth
Regenerationtop
Rarityhigh
01200+ speciesProfiles of the planet’s oddest animals.
02500+ articlesBehaviour, anatomy, habitats and records.
03Real biologyExplained properly, sourced, no myths.
04ExtremesFastest, deepest, oldest, most venomous.
// 6 android apps

Apps in real pockets.

Native Android apps on Google Play: built for speed, privacy and working offline.

13 / 19Remote terminalLive

PhoneCMD

Run your PC from your phone: persistent terminals, coding CLIs, AI agent.

Get it on Google Play →Full product page
13
E2Eencrypted
DirectP2P link
● connected · p2p · e2e
~/app $ npm test✓ 128 passed~/app $ git push→ main 3f2a1cagent › fix the flaky testediting tests/auth…
esctabctrl↑
encrypted
YOUR PC · 3 SESSIONSdev-server●tests●agent●

Run your PC from your phone. Persistent terminal sessions survive disconnects, coding CLIs and an AI agent run on your own machine, over an end-to-end encrypted, direct peer-to-peer link.

BUILT FORDevelopers who want their machine in their pocket.
01Persistent terminalsSessions keep running when your phone sleeps.
02Coding CLIsUse your usual command-line tools from mobile.
03AI agentAsk for changes and review them on the go.
04E2E + P2PEncrypted, direct device-to-device connection.
14 / 19VS Code bridgeLive

VSCoder Copilot

Your VS Code workspace and Copilot on mobile, via secure pairing.

Your VS Code workspace and Copilot on your phone. A secure pairing links the mobile app to an open-source extension, so you can browse files, chat and apply changes remotely.

BUILT FORDevelopers who use VS Code and want to keep working away from the desk.
Get it on Google Play →Full product page
14
No portforwarding
FilesChat
Add input validation to signupUpdated auth/signup.ts: 2 changes
- if (email) {+ if (isValid(email)) {
Apply
PAIRED WORKSPACE
src/ auth/ signup.ts ● login.ts api/package.json
pair code · 482 913
01Workspace accessBrowse and read your project files.
02Copilot chatAsk, review and apply suggestions.
03Secure pairingOne-time code links phone and editor.
04Open extensionMIT-licensed VS Code extension.
15 / 19Scanner + generatorLive

QR & Barcode Scanner

Opens straight to the camera; decodes every major format, fully offline.

Opens straight to the camera and decodes every major QR and barcode format instantly, fully offline. It also generates codes and keeps a searchable history.

BUILT FOREveryone who scans codes: shoppers, event staff, warehouses.
Get it on Google Play →Full product page
15
Cameraonly permission
offline · no data sent
EAN-13 · decoded8 690504 012345CopySearchShare
01Instant scanCamera opens immediately, no taps.
02Every formatQR, EAN, UPC, Code 128, Data Matrix and more.
03Fully offlineNothing leaves your phone.
04Generator & historyCreate codes and find past scans.
16 / 19Reader & editorLive

PDF & EPUB Reader

Offline reading and annotation with text-to-speech and night themes.

An offline reader and light editor for PDF and EPUB files, with annotations, text-to-speech and night themes for comfortable long sessions.

BUILT FORReaders who carry their library on their phone.
Get it on Google Play →Full product page
16
Freeno ads, no account
Chapter 4 · p. 87Aa ☾
The Long Voyagenote
▶1.2×
01PDF & EPUBBoth formats in one reader.
02AnnotateHighlight, note and bookmark.
03Text-to-speechListen to any document.
04Night themesComfortable reading in the dark.
17 / 19Device diagnosticsLive

Phone Health Checker

Battery health, live CPU and RAM, sensor tests and a device benchmark.

Device diagnostics in one app: battery health, live CPU and RAM, sensor and hardware tests, and a benchmark to compare devices.

BUILT FORAnyone buying, selling or troubleshooting a phone.
Get it on Google Play →Full product page
17
20+checks
91%battery health
CPU · live
RAM3.1 / 8 GB
Temp34°C
Sensors12 ✓
Score8,420
01Battery healthCapacity, temperature and charging state.
02Live monitorsCPU, RAM and storage in real time.
03Sensor testsScreen, speakers, camera and sensors.
04BenchmarkScore your device against others.
18 / 19Encrypted vaultLive

True File Locker

AES-256 on-device encryption with a hidden calculator vault mode.

An encrypted vault for files, protected with AES-256 on-device encryption and biometric unlock: hidden behind a working calculator when you need discretion.

BUILT FORPeople who keep sensitive photos and documents on their phone.
Get it on Google Play →Full product page
18
AES-256encryption
1337=
C±%÷789×456−123+0.⌫=
→
Vault🔒 AES-256
■passport.pdf■contracts/■notes.txt
01AES-256Strong on-device encryption.
02Biometric unlockFingerprint or face to open.
03Calculator modeVault disguised as a working calculator.
04On-device onlyFiles never leave your phone.
// open source

The engine behind it all.

The build and deploy framework that powers every Kalenux web product: free for anyone.

19 / 19Build frameworkOpen source

Kalenuxer

The build and deploy pipeline behind every Kalenux web product.

View on GitHub →Full product page
19
15+locales
<1srebuilds
~/my-site
$ kalenuxer build→ 15 locales · 2,140 pages✓ built in 0.8s$ kalenuxer deploy→ uploading 14 changed files✓ live
endefresitptnltrplsvjakozharru

The build and deploy pipeline behind every Kalenux web product, released as open source. It handles localisation, content builds and deploys, with near-instant rebuilds.

BUILT FORTeams shipping multilingual, content-heavy websites.
0115+ localesMultilingual builds out of the box.
02<1s rebuildsFast feedback while you write.
03One-command deployBuild and ship with a single step.
04Open sourceFree to use, read and extend.
in depth · 14 primary sources

Every product, live and checkable.

Public, checkable sources for the facts on this page.

01Web platforms

Each web product runs on its own live domain: When Notes Fly [1], Whats Your IQ [2], Fileformer [3], QR & Barcode Tool [4], Mirgent [5], CitePep [6], CertoJob [7], Corpy [8], Exhibition Stands EU [9], Down Under Cafe [10], Evolang [11] and Strange Animals [12].

02Apps and open source

Mobile apps are published on Google Play, which holds apps to Android’s core quality guidelines [14]. Open-source work, including the Kalenuxer framework, is public on GitHub [13].

KEY FACTInstall counts come from Google Play listings and are shown as Play reports them.

References

  1. [1]When Notes Fly · Kalenux productwhennotesfly.com
  2. [2]Whats Your IQ · Kalenux productwhats-your-iq.com
  3. [3]Fileformer · Kalenux productfileformer.com
  4. [4]QR & Barcode Tool · Kalenux productqr-bar-code.com
  5. [5]Mirgent · Kalenux productmirgent.com.tr
  6. [6]CitePep · Kalenux productcitepep.com
  7. [7]CertoJob · Kalenux productcertojob.com
  8. [8]Corpy · Kalenux productcorpy.xyz
  9. [9]Exhibition Stands EU · Kalenux productexhibition-stands.eu
  10. [10]Down Under Cafe · Kalenux productdownundercafe.com
  11. [11]Evolang · Kalenux productevolang.info
  12. [12]Strange Animals · Kalenux productstrangeanimals.info
  13. [13]Emir Baycan on GitHub · GitHubgithub.com/emirbaycan
  14. [14]Core app quality guidelines · Android Developersdeveloper.android.com/docs/quality-guidelines/core-app-quality
CITE THIS PAGEKalenux. (2026). Kalenux products. Kalenux SEO Guide. Last reviewed 1 Oct 2026. kalenux.com.tr/products