PyPI · #5973 most downloaded on PyPI

esp-idf-size

2.3.2406K downloads/moespressif/esp-idf-size ↗New releases in your daily digest, changelog included.

Firmware size analysis for ESP-IDF

Last release 3 days ago
01 Oct 2026
Ships fairly regularly
a new release about every 2 months
Some releases are documented
notes for 16 of 30 stable releases
1 version withdrawn
withdrawn after publishing
4 years old
31 releases · first in 2023

Release timeline

31 releases since 2023

2023202420252026

20232026

One column per quarter.

Releases

2.3.21 Oct 20262 sources agree
set soft_wrap explicitly for the console (Frantisek Hrbata - c369017 )
v2.3.2 (2026-09-30)

🐛 Bug Fixes

set soft_wrap explicitly for the console (Frantisek Hrbata - c369017)

use the full flash address window for esp32s31 (Frantisek Hrbata - 4de3fde)

do not report the external RAM total size (Frantisek Hrbata - d6c30a0)

pass the reference memory map to ignore_flash_size (Frantisek Hrbata - 511a782)

do not count overlapping memory regions twice (Frantisek Hrbata - 4ee528d)

use bus base address for esp32h4 flash and external RAM (Frantisek Hrbata - 62dc546)
Open source →

require esp-pylib 1.1.3 to keep the output file ANSI-free (Frantisek Hrbata - cd4cb26 )

v2.3.1 (2026-08-13)

🐛 Bug Fixes

require esp-pylib 1.1.3 to keep the output file ANSI-free (Frantisek Hrbata - cd4cb26)

Open source →

2.3.012 Aug 2026withdrawn2 sources agree

migrate esp-idf-size to esp-pylib (Vojtech Piroch - 2eea850 )

v2.3.0 (2026-08-11)

✨ New Features

migrate esp-idf-size to esp-pylib (Vojtech Piroch - 2eea850)

🐛 Bug Fixes

write the output file only after the report is generated (Frantisek Hrbata - b74b906)

Open source →

2.2.111 May 20262 sources agree

route external RAM sections by name to avoid flash/PSRAM overlap (Frantisek Hrbata - 2dad66a )

v2.2.1 (2026-05-07)

🐛 Bug Fixes

route external RAM sections by name to avoid flash/PSRAM overlap (Frantisek Hrbata - 2dad66a)

Open source →

2.2.028 Apr 20262 sources agree

initial esp32s31 support (Frantisek Hrbata - 0ca6c51 )

v2.2.0 (2026-04-27)

✨ New Features

initial esp32s31 support (Frantisek Hrbata - 0ca6c51)

🐛 Bug Fixes

ci: remove checkout of PR head in dangerjs workflow (Frantisek Hrbata - 09e97b0)
validate that project_description.json matches the analyzed map file (Frantisek Hrbata - a83d7fd)

Open source →

2.1.08 Dec 20252 sources agree

add total_size field into the json2 output format

v2.1.0 (2025-12-08)

New Features

add total_size field into the json2 output format

Open source →

2.0.01 Oct 20252 sources agree

NG is now default. Remove --ng flags and ESP_IDF_SIZE_NG env var. Update imports from esp_idf_size.ng to esp_idf_size. Output formats may differ.

v2.0.0 (2025-09-19)

BREAKING CHANGE

NG is now default. Remove --ng flags and ESP_IDF_SIZE_NG env var.
Update imports from esp_idf_size.ng to esp_idf_size. Output formats may differ.

New Features

Dropped --legacy mode and made .ng implementation default behaviour

Open source →

1.7.14 Jun 20252 sources agree

bump python to 3.13 in release_pypi.yml

v1.7.1 (2025-06-03)

Bug Fixes

bump python to 3.13 in release_pypi.yml

Open source →

1.6.110 Nov 20242 sources agree

add support for external RAM memory type for esp32p4

v1.6.1 (2024-11-08)

Bug Fixes

add support for external RAM memory type for esp32p4
cross reference table with empty symbol name
input section address not within output section range

Code Refactoring

ci: update esp-idf-size legacy tests to pytest

Open source →

1.6.010 Sept 20242 sources agree

add archives' dependencies report

v1.6.0 (2024-09-10)

New Features

add archives' dependencies report

Bug Fixes

update the memory type ranges for the esp32c5
handle archive paths that contain spaces

Open source →

1.5.018 Jun 20242 sources agree

ng: add filtering for archives, files, and symbols in table and CSV formats

v1.5.0 (2024-06-17)

New Features

ng: add filtering for archives, files, and symbols in table and CSV formats
ng: initial support for memorymap API

Bug Fixes

correctly handle DIRAM and overflows reports

Open source →

1.4.020 May 20242 sources agree

ng: support for projects built with enabled LTO

v1.4.0 (2024-05-20)

New Features

ng: support for projects built with enabled LTO
ng: initial version of ELF/DWARF parser
add --unify option allowing to aggregate size information

Bug Fixes

ng: handle output sections with no content in map file
ng: fix line enumeration in link map file parser
ng: remove console width limit
ng: fix map and elf file detection
ng: fix memory map trimming for diff output

Open source →

1.3.015 Apr 20242 sources agree

ng: add support for output format sorting

v1.3.0 (2024-04-15)

New Features

ng: add support for output format sorting
esp32c61: basic size support

Bug Fixes

ng: input section address not within output section range
do not account noinit sections into total image size
account only output sections with ".flash" string into flash memory
account SRAM1 into IRAM size on esp32

Open source →

1.2.018 Mar 2024

## v1.2.0 (2024-03-18) ### New Features - ng: add explicit bytes support

v1.2.0 (2024-03-18)

New Features

ng: add explicit bytes support

Open source →

Additional notes

New Features

ng: add explicit bytes support

Open source →

1.1.17 Feb 20242 sources agree

ng: correctly set input section stage in linker map parser

v1.1.1 (2024-02-07)

Bug Fixes

ng: correctly set input section stage in linker map parser
ng: provide more verbose error message when parsed map file validation fails

Open source →

1.1.031 Jan 2024

esp32c5: base support of esp32c5

v1.1.0 (2024-01-31)

New Features

esp32c5: base support of esp32c5

Open source →

Additional notes

New Features

esp32c5: base support of esp32c5

Open source →

1.0.35 Jan 2024

ng: handle alignment/fill in section validation